[clang] 648bd56 - [SystemZ][z/OS] Migrate most test case to use HLASM syntax (#181222)

via cfe-commits cfe-commits at lists.llvm.org
Fri Feb 13 11:44:51 PST 2026


Author: Kai Nacke
Date: 2026-02-13T14:44:44-05:00
New Revision: 648bd564d0bd66b4cc1b0a6607a15e15b3171204

URL: https://github.com/llvm/llvm-project/commit/648bd564d0bd66b4cc1b0a6607a15e15b3171204
DIFF: https://github.com/llvm/llvm-project/commit/648bd564d0bd66b4cc1b0a6607a15e15b3171204.diff

LOG: [SystemZ][z/OS] Migrate most test case to use HLASM syntax (#181222)

This PR migrates all but two test cases to use HLASM syntax. It also
flips the default for the command line option, making HLASM output the
default.
The missing test cases requires some more support in the HLASM streamer,
which I will add separately.

Added: 
    

Modified: 
    clang/test/CodeGen/SystemZ/systemz-ppa2.c
    llvm/lib/Target/SystemZ/MCTargetDesc/SystemZMCTargetDesc.cpp
    llvm/test/CodeGen/SystemZ/call-zos-01.ll
    llvm/test/CodeGen/SystemZ/call-zos-02.ll
    llvm/test/CodeGen/SystemZ/call-zos-i128.ll
    llvm/test/CodeGen/SystemZ/call-zos-vararg.ll
    llvm/test/CodeGen/SystemZ/llvm.sincos.ll
    llvm/test/CodeGen/SystemZ/mixed-ptr-sizes.ll
    llvm/test/CodeGen/SystemZ/zos-ada-relocations.ll
    llvm/test/CodeGen/SystemZ/zos-ada.ll
    llvm/test/CodeGen/SystemZ/zos-alias-unsupported.ll
    llvm/test/CodeGen/SystemZ/zos-dwarf.ll
    llvm/test/CodeGen/SystemZ/zos-frameaddr.ll
    llvm/test/CodeGen/SystemZ/zos-func-alias.ll
    llvm/test/CodeGen/SystemZ/zos-hlasm-out.ll
    llvm/test/CodeGen/SystemZ/zos-intrinsics.ll
    llvm/test/CodeGen/SystemZ/zos-jumptable.ll
    llvm/test/CodeGen/SystemZ/zos-landingpad.ll
    llvm/test/CodeGen/SystemZ/zos-lower-constant.ll
    llvm/test/CodeGen/SystemZ/zos-no-eh-label.ll
    llvm/test/CodeGen/SystemZ/zos-ppa1-argarea.ll
    llvm/test/CodeGen/SystemZ/zos-ppa1.ll
    llvm/test/CodeGen/SystemZ/zos-ppa2.ll
    llvm/test/CodeGen/SystemZ/zos-prologue-epilog.ll
    llvm/test/CodeGen/SystemZ/zos-ret-addr.ll
    llvm/test/CodeGen/SystemZ/zos-simple-test.ll
    llvm/test/CodeGen/SystemZ/zos-stackpointer.ll
    llvm/test/CodeGen/SystemZ/zos-symbol-1.ll
    llvm/test/CodeGen/SystemZ/zos-symbol-2.ll
    llvm/test/CodeGen/SystemZ/zos_sinit.ll
    llvm/test/MC/SystemZ/insn-good-zos-pcrel.s

Removed: 
    


################################################################################
diff  --git a/clang/test/CodeGen/SystemZ/systemz-ppa2.c b/clang/test/CodeGen/SystemZ/systemz-ppa2.c
index 26b068ff03d53..f7cb5bcb1f3bf 100644
--- a/clang/test/CodeGen/SystemZ/systemz-ppa2.c
+++ b/clang/test/CodeGen/SystemZ/systemz-ppa2.c
@@ -5,23 +5,21 @@
 //     We try to cover all cases, and use substitution blocks to
 //     help write the tests. The contents of the PPA2 itself should
 //     not be 
diff erent.
-//   + the [[:space:]] combines the two .byte lines into one pattern.
-//     This is necessary because if the lines were separated, the first
-//     .byte (i.e., the one for the 3) would, it seems, also match
-//     the .byte line below for the 34.
 
 // REQUIRES: systemz-registered-target
 
 // RUN: %clang_cc1 -triple s390x-ibm-zos -xc -S -o - %s | FileCheck %s --check-prefix CHECK-C
-// CHECK-C:        [[PPA2:(.L)|(L#)PPA2]]:
-// CHECK-C-NEXT:   .byte        3{{[[:space:]]*}}.byte 0
-// CHECK-C-NEXT:   .byte        34{{$}}
-// CHECK-C-NEXT:   .byte        {{4}}
-// CHECK-C-NEXT:   .long        {{(CELQSTRT)}}-[[PPA2]]
+// CHECK-C:        [[PPA2:(.L)|(L#)PPA2]] DS 0H
+// CHECK-C-NEXT:   DC  XL1'03'
+// CHECK-C-NEXT:   DC  XL1'00'
+// CHECK-C-NEXT:   DC  XL1'22'
+// CHECK-C-NEXT:   DC  XL1'04'
+// CHECK-C-NEXT:   DC AD(CELQSTRT-[[PPA2]])
 
 // RUN: %clang_cc1 -triple s390x-ibm-zos -xc++ -S -o - %s | FileCheck %s --check-prefix CHECK-CXX
-// CHECK-CXX:        [[PPA2:(.L)|(L#)PPA2]]:
-// CHECK-CXX-NEXT:   .byte      3{{[[:space:]]*}}.byte 1
-// CHECK-CXX-NEXT:   .byte      34{{$}}
-// CHECK-CXX-NEXT:   .byte      {{4}}
-// CHECK-CXX-NEXT:   .long      {{(CELQSTRT)}}-[[PPA2]]
+// CHECK-CXX:        [[PPA2:(.L)|(L#)PPA2]] DS 0H
+// CHECK-CXX-NEXT:   DC  XL1'03'
+// CHECK-CXX-NEXT:   DC  XL1'01'
+// CHECK-CXX-NEXT:   DC  XL1'22'
+// CHECK-CXX-NEXT:   DC  XL1'04'
+// CHECK-CXX-NEXT:   DC AD(CELQSTRT-[[PPA2]])

diff  --git a/llvm/lib/Target/SystemZ/MCTargetDesc/SystemZMCTargetDesc.cpp b/llvm/lib/Target/SystemZ/MCTargetDesc/SystemZMCTargetDesc.cpp
index faef5bb926780..4356f7ad05121 100644
--- a/llvm/lib/Target/SystemZ/MCTargetDesc/SystemZMCTargetDesc.cpp
+++ b/llvm/lib/Target/SystemZ/MCTargetDesc/SystemZMCTargetDesc.cpp
@@ -41,7 +41,7 @@ using namespace llvm;
 // z/OS
 static cl::opt<bool> GNUAsOnzOSCL("emit-gnuas-syntax-on-zos",
                                   cl::desc("Emit GNU Assembly Syntax on z/OS."),
-                                  cl::init(true));
+                                  cl::init(false));
 
 const unsigned SystemZMC::GR32Regs[16] = {
     SystemZ::R0L,  SystemZ::R1L,  SystemZ::R2L,  SystemZ::R3L,

diff  --git a/llvm/test/CodeGen/SystemZ/call-zos-01.ll b/llvm/test/CodeGen/SystemZ/call-zos-01.ll
index 7ad1e4c4679eb..7a2fb3f2dfc49 100644
--- a/llvm/test/CodeGen/SystemZ/call-zos-01.ll
+++ b/llvm/test/CodeGen/SystemZ/call-zos-01.ll
@@ -2,14 +2,14 @@
 ;
 ; RUN: llc < %s -mtriple=s390x-ibm-zos -mcpu=z10 | FileCheck %s
 
-; CHECK-LABEL: call_char:
+; CHECK-LABEL: call_char DS 0H
 ; CHECK: lghi  1,8
 define i8 @call_char(){
   %retval = call i8 (i8) @pass_char(i8 8)
   ret i8 %retval
 }
 
-; CHECK-LABEL: call_short:
+; CHECK-LABEL: call_short DS 0H
 ; CHECK: lghi  1,16
 define i16 @call_short() {
 entry:
@@ -17,7 +17,7 @@ entry:
   ret i16 %retval
 }
 
-; CHECK-LABEL: call_int:
+; CHECK-LABEL: call_int DS 0H
 ; CHECK: lghi  1,32
 ; CHECK: lghi  2,33
 define i32 @call_int() {
@@ -26,7 +26,7 @@ entry:
   ret i32 %retval
 }
 
-; CHECK-LABEL: call_long:
+; CHECK-LABEL: call_long DS 0H
 ; CHECK: lghi  1,64
 ; CHECK: lghi  2,65
 ; CHECK: lghi  3,66
@@ -36,7 +36,7 @@ entry:
   ret i64 %retval
 }
 
-; CHECK-LABEL: call_ptr:
+; CHECK-LABEL: call_ptr DS 0H
 ; CHECK: lgr 1,2
 define i32 @call_ptr(ptr %p1, ptr %p2) {
 entry:
@@ -44,7 +44,7 @@ entry:
   ret i32 %retval
 }
 
-; CHECK-LABEL: call_integrals:
+; CHECK-LABEL: call_integrals DS 0H
 ; CHECK: lghi  1,64
 ; CHECK: lghi  2,32
 ; CHECK: lghi  3,16
@@ -54,28 +54,28 @@ entry:
   ret i64 %retval
 }
 
-; CHECK-LABEL: pass_char:
+; CHECK-LABEL: pass_char DS 0H
 ; CHECK: lgr 3,1
 define signext i8 @pass_char(i8 signext %arg) {
 entry:
   ret i8 %arg
 }
 
-; CHECK-LABEL: pass_short:
+; CHECK-LABEL: pass_short DS 0H
 ; CHECK: lgr 3,1
 define signext i16 @pass_short(i16 signext %arg) {
 entry:
   ret i16 %arg
 }
 
-; CHECK-LABEL: pass_int:
+; CHECK-LABEL: pass_int DS 0H
 ; CHECK: lgr 3,2
 define signext i32 @pass_int(i32 signext %arg0, i32 signext %arg1) {
 entry:
   ret i32 %arg1
 }
 
-; CHECK-LABEL: pass_long:
+; CHECK-LABEL: pass_long DS 0H
 ; CHECK: agr 1,2
 ; CHECK: agr 3,1
 define signext i64 @pass_long(i64 signext %arg0, i64 signext %arg1, i64 signext %arg2) {
@@ -85,7 +85,7 @@ entry:
   ret i64 %M
 }
 
-; CHECK-LABEL: pass_integrals0:
+; CHECK-LABEL: pass_integrals0 DS 0H
 ; CHECK: ag  2,2200(4)
 ; CHECK-NEXT: lgr 3,2
 define signext i64 @pass_integrals0(i64 signext %arg0, i32 signext %arg1, i16 signext %arg2, i64 signext %arg3) {
@@ -95,7 +95,7 @@ entry:
   ret i64 %M
 }
 
-; CHECK-LABEL: call_float:
+; CHECK-LABEL: call_float DS 0H
 ; CHECK: le 0,0({{[0-9]}})
 define float @call_float() {
 entry:
@@ -103,7 +103,7 @@ entry:
   ret float %ret
 }
 
-; CHECK-LABEL: call_double:
+; CHECK-LABEL: call_double DS 0H
 ; CHECK: larl  [[GENREG:[0-9]+]],L#{{CPI[0-9]+_[0-9]+}}
 ; CHECK-NEXT: ld  0,0([[GENREG]])
 define double @call_double() {
@@ -112,7 +112,7 @@ entry:
   ret double %ret
 }
 
-; CHECK-LABEL: call_longdouble:
+; CHECK-LABEL: call_longdouble DS 0H
 ; CHECK: larl  [[GENREG:[0-9]+]],L#{{CPI[0-9]+_[0-9]+}}
 ; CHECK-NEXT: ld  0,0([[GENREG]])
 ; CHECK-NEXT: ld  2,8([[GENREG]])
@@ -122,7 +122,7 @@ entry:
   ret fp128 %ret
 }
 
-; CHECK-LABEL: call_floats0
+; CHECK-LABEL: call_floats0 DS 0H
 ; CHECK: larl  [[GENREG:[0-9]+]],L#{{CPI[0-9]+_[0-9]+}}
 ; CHECK-NEXT: ld  1,0([[GENREG]])
 ; CHECK-NEXT: ld  3,8([[GENREG]])
@@ -135,7 +135,7 @@ entry:
   ret i64 %ret
 }
 
-; CHECK-LABEL: call_floats1
+; CHECK-LABEL: call_floats1 DS 0H
 ; CHECK: lxr 1,0
 ; CHECK: ldr 0,4
 ; CHECK: lxr 4,1
@@ -145,7 +145,7 @@ entry:
   ret i64 %ret
 }
 
-; CHECK-LABEL: pass_float:
+; CHECK-LABEL: pass_float DS 0H
 ; CHECK: larl  1,L#{{CPI[0-9]+_[0-9]+}}
 ; CHECK: aeb 0,0(1)
 define float @pass_float(float %arg) {
@@ -154,7 +154,7 @@ entry:
   ret float %X
 }
 
-; CHECK-LABEL: pass_double:
+; CHECK-LABEL: pass_double DS 0H
 ; CHECK: larl  1,L#{{CPI[0-9]+_[0-9]+}}
 ; CHECK: adb 0,0(1)
 define double @pass_double(double %arg) {
@@ -163,7 +163,7 @@ entry:
   ret double %X
 }
 
-; CHECK-LABEL: pass_longdouble
+; CHECK-LABEL: pass_longdouble DS 0H
 ; CHECK: larl  1,L#{{CPI[0-9]+_[0-9]+}}
 ; CHECK: lxdb  1,0(1)
 ; CHECK: axbr  0,1
@@ -173,7 +173,7 @@ entry:
   ret fp128 %X
 }
 
-; CHECK-LABEL: pass_floats0
+; CHECK-LABEL: pass_floats0 DS 0H
 ; CHECK: larl  1,L#{{CPI[0-9]+_[0-9]+}}
 ; CHECK: axbr  0,4
 ; CHECK: axbr  1,0

diff  --git a/llvm/test/CodeGen/SystemZ/call-zos-02.ll b/llvm/test/CodeGen/SystemZ/call-zos-02.ll
index a7f600ae99db0..4f1013fc8974d 100644
--- a/llvm/test/CodeGen/SystemZ/call-zos-02.ll
+++ b/llvm/test/CodeGen/SystemZ/call-zos-02.ll
@@ -1,4 +1,4 @@
-; RUN: llc --mtriple=s390x-ibm-zos --show-mc-encoding < %s | FileCheck %s
+; RUN: llc --mtriple=s390x-ibm-zos --show-mc-encoding -emit-gnuas-syntax-on-zos=1 < %s | FileCheck %s
 
 define internal signext i32 @caller() {
 entry:

diff  --git a/llvm/test/CodeGen/SystemZ/call-zos-i128.ll b/llvm/test/CodeGen/SystemZ/call-zos-i128.ll
index 98c3d84bc8bf9..c12e26184f068 100644
--- a/llvm/test/CodeGen/SystemZ/call-zos-i128.ll
+++ b/llvm/test/CodeGen/SystemZ/call-zos-i128.ll
@@ -2,7 +2,7 @@
 ;
 ; RUN: llc < %s -mtriple=s390x-ibm-zos -mcpu=z13 | FileCheck %s
 
-; CHECK-LABEL: call_i128:
+; CHECK-LABEL: call_i128 DS 0H
 ; CHECK-DAG: larl    1,L#CPI0_0
 ; CHECK-DAG: vl      0,0(1),3
 ; CHECK-DAG: vst     0,2256(4),3
@@ -19,7 +19,7 @@ entry:
   ret i128 %retval
 }
 
-; CHECK-LABEL: pass_i128:
+; CHECK-LABEL: pass_i128 DS 0H
 ; CHECK: vl      0,0(3),3
 ; CHECK: vl      1,0(2),3
 ; CHECK: vaq     0,1,0

diff  --git a/llvm/test/CodeGen/SystemZ/call-zos-vararg.ll b/llvm/test/CodeGen/SystemZ/call-zos-vararg.ll
index 72f4d79610e0e..147fbe63f5af4 100644
--- a/llvm/test/CodeGen/SystemZ/call-zos-vararg.ll
+++ b/llvm/test/CodeGen/SystemZ/call-zos-vararg.ll
@@ -1,7 +1,7 @@
 ; Test passing variable argument lists in 64-bit calls on z/OS.
 ; RUN: llc < %s -mtriple=s390x-ibm-zos -mcpu=z10 | FileCheck %s
 ; RUN: llc < %s -mtriple=s390x-ibm-zos -mcpu=z14 | FileCheck %s -check-prefix=ARCH12
-; CHECK-LABEL: call_vararg_double0:
+; CHECK-LABEL: call_vararg_double0 DS 0H
 ; CHECK:         stmg 6,7,1872(4)
 ; CHECK-NEXT:    aghi 4,-192
 ; CHECK-NEXT:    lg 6,8(5)
@@ -21,7 +21,7 @@ entry:
   ret i64 %retval
 }
 
-; CHECK-LABEL: call_vararg_double1:
+; CHECK-LABEL: call_vararg_double1  DS 0H
 ; CHECK:         stmg 6,7,1872(4)
 ; CHECK-NEXT:    aghi 4,-192
 ; CHECK-NEXT:    llihf 0,1074118262
@@ -44,7 +44,7 @@ entry:
   ret i64 %retval
 }
 
-; CHECK-LABEL: call_vararg_double2:
+; CHECK-LABEL: call_vararg_double2  DS 0H
 ; CHECK:         stmg 6,7,1872(4)
 ; CHECK-NEXT:    aghi 4,-192
 ; CHECK-NEXT:    lg 6,24(5)
@@ -63,7 +63,7 @@ entry:
   ret i64 %retval
 }
 
-; CHECK-LABEL: call_vararg_double3:
+; CHECK-LABEL: call_vararg_double3 DS 0H
 ; CHECK:         stmg 6,7,1872(4)
 ; CHECK-NEXT:    aghi 4,-192
 ; CHECK-NEXT:    llihf 0,1072703839
@@ -89,7 +89,7 @@ entry:
 }
 
 ;; TODO: The extra COPY after LGDR is unnecessary (machine-scheduler introduces the overlap).
-; CHECK-LABEL: call_vararg_both0:
+; CHECK-LABEL: call_vararg_both0 DS 0H
 ; CHECK:         stmg 6,7,1872(4)
 ; CHECK-NEXT:    aghi 4,-192
 ; CHECK-NEXT:    lg 6,40(5)
@@ -107,7 +107,7 @@ define i64 @call_vararg_both0(i64 %arg0, double %arg1) {
   ret i64 %retval
 }
 
-; CHECK-LABEL: call_vararg_long_double0:
+; CHECK-LABEL: call_vararg_long_double0 DS 0H
 ; CHECK:         stmg 6,7,1872(4)
 ; CHECK-NEXT:    aghi 4,-192
 ; CHECK-NEXT:    larl 1,L#CPI5_0
@@ -131,7 +131,7 @@ entry:
   ret i64 %retval
 }
 
-; CHECK-LABEL: call_vararg_long_double1:
+; CHECK-LABEL: call_vararg_long_double1 DS 0H
 ; CHECK:         stmg 6,7,1872(4)
 ; CHECK-NEXT:    aghi 4,-192
 ; CHECK-NEXT:    lg 6,8(5)
@@ -152,8 +152,7 @@ entry:
   ret i64 %retval
 }
 
-; CHECK-LABEL: call_vararg_long_double2
-; CHECK-LABEL: call_vararg_long_double2:
+; CHECK-LABEL: call_vararg_long_double2 DS 0H
 ; CHECK:         stmg 6,7,1872(4)
 ; CHECK-NEXT:    aghi 4,-192
 ; CHECK-NEXT:    std 4,2208(4)
@@ -176,7 +175,7 @@ entry:
   ret i64 %retval
 }
 
-; CHECK-LABEL: call_vararg_long_double3:
+; CHECK-LABEL: call_vararg_long_double3 DS 0H
 ; CHECK:         stmg 6,7,1872(4)
 ; CHECK-NEXT:    aghi 4,-192
 ; CHECK-NEXT:    lg 6,40(5)
@@ -194,7 +193,7 @@ entry:
   ret i64 %retval
 }
 
-; ARCH12-LABEL: call_vec_vararg_test0
+; ARCH12-LABEL: call_vec_vararg_test0 DS 0H
 ; ARCH12: vlgvg 3,24,1
 ; ARCH12: vlgvg 2,24,0
 ; ARCH12: lghi  1,1
@@ -203,7 +202,7 @@ define void @call_vec_vararg_test0(<2 x double> %v) {
   ret void
 }
 
-; ARCH12-LABEL: call_vec_vararg_test1
+; ARCH12-LABEL: call_vec_vararg_test1 DS 0H
 ; ARCH12: larl  1,L#CPI10_0
 ; ARCH12: vl    0,0(1),3
 ; ARCH12: vlgvg 3,24,0
@@ -215,7 +214,7 @@ define void @call_vec_vararg_test1(<4 x i32> %v, <2 x i64> %w) {
   ret void
 }
 
-; ARCH12-LABEL: call_vec_char_vararg_straddle
+; ARCH12-LABEL: call_vec_char_vararg_straddle DS 0H
 ; ARCH12: vlgvg 3,24,0
 ; ARCH12: lghi  1,1
 ; ARCH12: lghi  2,2
@@ -225,7 +224,7 @@ define void @call_vec_char_vararg_straddle(<16 x i8> %v) {
   ret void
 }
 
-; ARCH12-LABEL: call_vec_short_vararg_straddle
+; ARCH12-LABEL: call_vec_short_vararg_straddle DS 0H
 ; ARCH12: vlgvg 3,24,0
 ; ARCH12: lghi  1,1
 ; ARCH12: lghi  2,2
@@ -235,7 +234,7 @@ define void @call_vec_short_vararg_straddle(<8 x i16> %v) {
   ret void
 }
 
-; ARCH12-LABEL: call_vec_int_vararg_straddle
+; ARCH12-LABEL: call_vec_int_vararg_straddle DS 0H
 ; ARCH12: vlgvg 3,24,0
 ; ARCH12: lghi  1,1
 ; ARCH12: lghi  2,2
@@ -245,7 +244,7 @@ define void @call_vec_int_vararg_straddle(<4 x i32> %v) {
   ret void
 }
 
-; ARCH12-LABEL: call_vec_double_vararg_straddle
+; ARCH12-LABEL: call_vec_double_vararg_straddle DS 0H
 ; ARCH12: vlgvg 3,24,0
 ; ARCH12: lghi  1,1
 ; ARCH12: lghi  2,2
@@ -255,7 +254,7 @@ define void @call_vec_double_vararg_straddle(<2 x double> %v) {
   ret void
 }
 
-; CHECK-LABEL: call_vararg_integral0:
+; CHECK-LABEL: call_vararg_integral0 DS 0H
 ; CHECK:         stmg 6,7,1872(4)
 ; CHECK-NEXT:    aghi 4,-192
 ; CHECK-NEXT:    lg 0,2392(4)
@@ -273,7 +272,7 @@ entry:
   ret i64 %retval
 }
 
-; CHECK-LABEL: call_vararg_float0:
+; CHECK-LABEL: call_vararg_float0 DS 0H
 ; CHECK:         stmg 6,7,1872(4)
 ; CHECK-NEXT:    aghi 4,-192
 ; CHECK-NEXT:    lg 6,24(5)
@@ -291,7 +290,7 @@ entry:
   ret i64 %retval
 }
 
-; CHECK-LABEL: call_vararg_float1:
+; CHECK-LABEL: call_vararg_float1 DS 0H
 ; CHECK:         stmg 6,7,1872(4)
 ; CHECK-NEXT:    aghi 4,-192
 ; CHECK-NEXT:    lg 6,72(5)
@@ -325,7 +324,7 @@ entry:
 ;   return ret;
 ; }
 ;
-; CHECK-LABEL: pass_vararg:
+; CHECK-LABEL: pass_vararg DS 0H
 ; CHECK:         stmg 6,7,1904(4)
 ; CHECK-NEXT:    aghi 4,-160
 ; CHECK-NEXT:    stg 2,2344(4)

diff  --git a/llvm/test/CodeGen/SystemZ/llvm.sincos.ll b/llvm/test/CodeGen/SystemZ/llvm.sincos.ll
index e47759b188296..964f9b696c1dd 100644
--- a/llvm/test/CodeGen/SystemZ/llvm.sincos.ll
+++ b/llvm/test/CodeGen/SystemZ/llvm.sincos.ll
@@ -183,19 +183,24 @@ define { <2 x fp128>, <2 x fp128> } @test_sincos_v2f128(<2 x fp128> %a) #0 {
   ret { <2 x fp128>, <2 x fp128> } %result
 }
 
-
-; ZOS: .quad	RD(@@FSIN at B)                    * Offset 0 function descriptor of @@FSIN at B
-; ZOS: .quad	VD(@@FSIN at B)
-; ZOS: .quad	RD(@@FCOS at B)                    * Offset 16 function descriptor of @@FCOS at B
-; ZOS: .quad	VD(@@FCOS at B)
-; ZOS: .quad	RD(@@SSIN at B)                    * Offset 32 function descriptor of @@SSIN at B
-; ZOS: .quad	VD(@@SSIN at B)
-; ZOS: .quad	RD(@@SCOS at B)                    * Offset 48 function descriptor of @@SCOS at B
-; ZOS: .quad	VD(@@SCOS at B)
-; ZOS: .quad	RD(@@LSIN at B)                    * Offset 64 function descriptor of @@LSIN at B
-; ZOS: .quad	VD(@@LSIN at B)
-; ZOS: .quad	RD(@@LCOS at B)                    * Offset 80 function descriptor of @@LCOS at B
-; ZOS: .quad	VD(@@LCOS at B)
+; ZOS: * Offset 0 function descriptor of @@FSIN at B
+; ZOS: DC RD(@@FSIN at B)
+; ZOS: DC VD(@@FSIN at B)
+; ZOS: * Offset 16 function descriptor of @@FCOS at B
+; ZOS: DC RD(@@FCOS at B)
+; ZOS: DC VD(@@FCOS at B)
+; ZOS: * Offset 32 function descriptor of @@SSIN at B
+; ZOS: DC RD(@@SSIN at B)
+; ZOS: DC VD(@@SSIN at B)
+; ZOS: * Offset 48 function descriptor of @@SCOS at B
+; ZOS: DC RD(@@SCOS at B)
+; ZOS: DC VD(@@SCOS at B)
+; ZOS: * Offset 64 function descriptor of @@LSIN at B
+; ZOS: DC RD(@@LSIN at B)
+; ZOS: DC VD(@@LSIN at B)
+; ZOS: * Offset 80 function descriptor of @@LCOS at B
+; ZOS: DC RD(@@LCOS at B)
+; ZOS: DC VD(@@LCOS at B)
 
 
 attributes #0 = { nounwind }

diff  --git a/llvm/test/CodeGen/SystemZ/mixed-ptr-sizes.ll b/llvm/test/CodeGen/SystemZ/mixed-ptr-sizes.ll
index a95f68b5e118d..ddd6850e54406 100644
--- a/llvm/test/CodeGen/SystemZ/mixed-ptr-sizes.ll
+++ b/llvm/test/CodeGen/SystemZ/mixed-ptr-sizes.ll
@@ -103,7 +103,7 @@ declare void @use_foo(ptr)
 
 define void @ptr32_to_ptr(ptr %f, ptr addrspace(1) %i) {
 entry:
-; CHECK-LABEL: ptr32_to_ptr:
+; CHECK-LABEL: ptr32_to_ptr DS 0H
 ; CHECK:       llgtr 0,2
 ; CHECK-NEXT:  stg   0,8(1)
   %0 = addrspacecast ptr addrspace(1) %i to ptr
@@ -115,7 +115,7 @@ entry:
 
 define void @ptr_to_ptr32(ptr %f, ptr %i) {
 entry:
-; CHECK-LABEL: ptr_to_ptr32:
+; CHECK-LABEL: ptr_to_ptr32 DS 0H
 ; CHECK:       nilh 2,32767
 ; CHECK-NEXT:  st   2,0(1)
   %0 = addrspacecast ptr %i to ptr addrspace(1)
@@ -127,7 +127,7 @@ entry:
 
 define void @ptr32_to_ptr32(ptr %f, ptr addrspace(1) %i) {
 entry:
-; CHECK-LABEL: ptr32_to_ptr32:
+; CHECK-LABEL: ptr32_to_ptr32 DS 0H
 ; CHECK:       st 2,0(1)
   %p32 = getelementptr inbounds %struct.Foo, ptr %f, i64 0, i32 0
   store ptr addrspace(1) %i, ptr %p32, align 8
@@ -136,7 +136,7 @@ entry:
 }
 
 define void @ptr_to_ptr(ptr %f, ptr %i) {
-; CHECK-LABEL: ptr_to_ptr:
+; CHECK-LABEL: ptr_to_ptr DS 0H
 ; CHECK:       stg 2,8(1)
   %p64 = getelementptr inbounds %struct.Foo, ptr %f, i64 0, i32 1
   store ptr %i, ptr %p64, align 8
@@ -146,7 +146,7 @@ define void @ptr_to_ptr(ptr %f, ptr %i) {
 
 define void @test_indexing(ptr %f) {
 entry:
-; CHECK-LABEL: test_indexing:
+; CHECK-LABEL: test_indexing DS 0H
 ; CHECK:       l     0,1032
 ; CHECK:       llgtr 0,0
 ; CHECK:       stg   0,16(1)
@@ -160,7 +160,7 @@ entry:
 
 define void @test_indexing_2(ptr %f) {
 entry:
-; CHECK-LABEL: test_indexing_2:
+; CHECK-LABEL: test_indexing_2 DS 0H
 ; CHECK:       lhi   0,16
 ; CHECK-NEXT:  a     0,1032
 ; CHECK-NEXT:  llgtr 2,0
@@ -181,7 +181,7 @@ entry:
 
 define ptr @test_misc() {
 entry:
-; CHECK-LABEL: test_misc:
+; CHECK-LABEL: test_misc DS 0H
 ; CHECK:       lhi   0,88
 ; CHECK-NEXT:  a     0,1208
 ; CHECK-NEXT:  llgtr 1,0
@@ -204,7 +204,7 @@ entry:
 
 define ptr addrspace(1) @test_misc_2() {
 entry:
-; CHECK-LABEL: test_misc_2:
+; CHECK-LABEL: test_misc_2 DS 0H
 ; CHECK:       lhi   0,544
 ; CHECK:       a     0,16
 ; CHECK:       llgtr 1,0
@@ -221,7 +221,7 @@ entry:
 
 define zeroext i16 @test_misc_3() {
 entry:
-; CHECK-LABEL: test_misc_3:
+; CHECK-LABEL: test_misc_3 DS 0H
 ; CHECK:       a     0,548
 ; CHECK-NEXT:  llgtr 1,0
 ; CHECK-NEXT:  llgh  3,0(1)
@@ -235,7 +235,7 @@ entry:
 
 define signext i32 @test_misc_4() {
 entry:
-; CHECK-LABEL: test_misc_4:
+; CHECK-LABEL: test_misc_4 DS 0H
 ; CHECK:       lhi   0,88
 ; CHECK-NEXT:  a     0,1208
 ; CHECK-NEXT:  llgtr 1,0
@@ -261,7 +261,7 @@ entry:
 
 define void @test_misc_5(ptr %f) {
 entry:
-; CHECK-LABEL: test_misc_5:
+; CHECK-LABEL: test_misc_5 DS 0H
 ; CHECK:       l     0,548
 ; CHECK-NEXT:  lg  6,8(5)
 ; CHECK-NEXT:  lg  5,0(5)
@@ -277,7 +277,7 @@ entry:
 
 define signext i32 @get_processor_count() {
 entry:
-; CHECK-LABEL: get_processor_count:
+; CHECK-LABEL: get_processor_count DS 0H
 ; CHECK: lhi 0,660
 ; CHECK-NEXT: a 0,16
 ; CHECK-NEXT: llgtr 1,0
@@ -296,7 +296,7 @@ entry:
 
 define void @spill_ptr32_args_to_registers(i8 addrspace(1)* %p) {
 entry:
-; CHECK-LABEL: spill_ptr32_args_to_registers:
+; CHECK-LABEL: spill_ptr32_args_to_registers DS 0H
 ; CHECK:         stmg 6,7,1872(4)
 ; CHECK-NEXT:    aghi 4,-192
 ; CHECK-NEXT:    lgr 2,1
@@ -327,7 +327,7 @@ declare void @g(i32 signext, ...)
 ; cast to __ptr32, setting the upper 32 bit to zero.
 ;
 define signext i32 @setlength() {
-; CHECK-LABEL: setlength:
+; CHECK-LABEL: setlength DS 0H
 ; CHECK: basr    7,6
 ; CHECK: lgr     [[MALLOC:[0-9]+]],3
 ; CHECK: basr    7,6
@@ -351,7 +351,7 @@ entry:
 ; the function now returns a __ptr32.
 ;
 define signext i32 @setlength2() {
-; CHECK-LABEL: setlength2:
+; CHECK-LABEL: setlength2 DS 0H
 ; CHECK: basr    7,6
 ; CHECK: lgr     [[MALLOC:[0-9]+]],3
 ; CHECK: basr    7,6

diff  --git a/llvm/test/CodeGen/SystemZ/zos-ada-relocations.ll b/llvm/test/CodeGen/SystemZ/zos-ada-relocations.ll
index 616cb370f6fc8..f3bdf64683bb6 100644
--- a/llvm/test/CodeGen/SystemZ/zos-ada-relocations.ll
+++ b/llvm/test/CodeGen/SystemZ/zos-ada-relocations.ll
@@ -2,7 +2,7 @@
 ;
 ; RUN: llc < %s -mtriple=s390x-ibm-zos | FileCheck %s
 
-; CHECK-LABEL: DoIt:
+; CHECK-LABEL: DoIt DS 0H
 ; CHECK:    stmg    6,7,1840(4)
 ; CHECK:    aghi    4,-224
 ; CHECK:    lg  1,0(5)
@@ -25,7 +25,7 @@ entry:
 declare void @DoFunc()
 declare void @Caller(ptr noundef)
 
-; CHECK-LABEL: get_i:
+; CHECK-LABEL: get_i DS 0H
 ; CHECK:    stmg    6,8,1872(4)
 ; CHECK:    aghi    4,-192
 ; CHECK:    lg  1,24(5)
@@ -56,14 +56,18 @@ entry:
 declare signext i32 @callout(i32 signext)
 
 ; CHECK: stdin#C CSECT
-; CHECK: C_WSA64 CATTR ALIGN(4),FILL(0),DEFLOAD,NOTEXECUTABLE,RMODE(64),PART(stdin#S)
+; CHECK: C_WSA64 CATTR ALIGN(4),FILL(0),DEFLOAD,NOTEXECUTABLE,RMODE(64),PART(stdi
+; CHECK:                in#S)
 ; CHECK: stdin#S XATTR LINKAGE(XPLINK),REFERENCE(DATA),SCOPE(SECTION)
-; CHECK:  .set L#DoFunc at indirect0, DoFunc
-; CHECK:      .indirect_symbol   L#DoFunc at indirect0
-; CHECK:  .quad VD(L#DoFunc at indirect0)         * Offset 0 pointer to function descriptor DoFunc
-; CHECK:  .quad RD(Caller)                     * Offset 8 function descriptor of Caller
-; CHECK:  .quad VD(Caller)
-; CHECK:  .quad AD(i2)                          * Offset 24 pointer to data symbol i2
-; CHECK:  .quad AD(i)                           * Offset 32 pointer to data symbol i
-; CHECK:  .quad RD(callout)                     * Offset 40 function descriptor of callout
-; CHECK:  .quad VD(callout)
+; CHECK: * Offset 0 pointer to function descriptor DoFunc
+; CHECK:  DC VD(L#DoFunc at indirect0)
+; CHECK: * Offset 8 function descriptor of Caller
+; CHECK:  DC RD(Caller)
+; CHECK:  DC VD(Caller)
+; CHECK: * Offset 24 pointer to data symbol i2
+; CHECK:  DC AD(i2)
+; CHECK: * Offset 32 pointer to data symbol i
+; CHECK:  DC AD(i)
+; CHECK: * Offset 40 function descriptor of callout
+; CHECK:  DC RD(callout)
+; CHECK:  DC VD(callout)

diff  --git a/llvm/test/CodeGen/SystemZ/zos-ada.ll b/llvm/test/CodeGen/SystemZ/zos-ada.ll
index 8f00f32c1b805..dcdcf2d6c6dc8 100644
--- a/llvm/test/CodeGen/SystemZ/zos-ada.ll
+++ b/llvm/test/CodeGen/SystemZ/zos-ada.ll
@@ -2,7 +2,7 @@
 ;
 ; RUN: llc < %s -mtriple=s390x-ibm-zos -mcpu=z10 | FileCheck %s
 
-; CHECK-LABEL: caller:
+; CHECK-LABEL: caller DS 0H
 ; CHECK:         stmg 6,8,1872(4)
 ; CHECK-NEXT:    aghi 4,-192
 ; CHECK-NEXT:    lgr 8,5

diff  --git a/llvm/test/CodeGen/SystemZ/zos-alias-unsupported.ll b/llvm/test/CodeGen/SystemZ/zos-alias-unsupported.ll
index 1a01e91d1f8f2..5aeebcd157c84 100644
--- a/llvm/test/CodeGen/SystemZ/zos-alias-unsupported.ll
+++ b/llvm/test/CodeGen/SystemZ/zos-alias-unsupported.ll
@@ -1,6 +1,6 @@
 ; Test aliasing errors on z/OS
 
-; RUN: not llc < %s -mtriple=s390x-ibm-zos -emit-gnuas-syntax-on-zos=0 2>&1 | FileCheck %s
+; RUN: not llc < %s -mtriple=s390x-ibm-zos 2>&1 | FileCheck %s
 
 ; CHECK: error: Only aliases to functions is supported in GOFF.
 ; CHECK: error: Weak alias/reference not supported on z/OS

diff  --git a/llvm/test/CodeGen/SystemZ/zos-dwarf.ll b/llvm/test/CodeGen/SystemZ/zos-dwarf.ll
index 919602c799f7a..372126f5d5737 100644
--- a/llvm/test/CodeGen/SystemZ/zos-dwarf.ll
+++ b/llvm/test/CodeGen/SystemZ/zos-dwarf.ll
@@ -1,4 +1,4 @@
-; RUN: llc < %s -mtriple=s390x-ibm-zos -emit-gnuas-syntax-on-zos=0 | FileCheck %s
+; RUN: llc < %s -mtriple=s390x-ibm-zos | FileCheck %s
 
 @fortytwo = hidden global i32 42, align 4, !dbg !0
 

diff  --git a/llvm/test/CodeGen/SystemZ/zos-frameaddr.ll b/llvm/test/CodeGen/SystemZ/zos-frameaddr.ll
index f0a8a67041d12..ae5f71e31fc50 100644
--- a/llvm/test/CodeGen/SystemZ/zos-frameaddr.ll
+++ b/llvm/test/CodeGen/SystemZ/zos-frameaddr.ll
@@ -4,7 +4,7 @@
 ; The current function's frame address is the address of
 ; the optional back chain slot.
 define ptr @fp0() nounwind {
-; CHECK-LABEL: fp0:
+; CHECK-LABEL: fp0 DS 0H
 ; CHECK:         la 3,2048(4)
 ; CHECK-NEXT:    b 2(7)
 entry:
@@ -15,7 +15,7 @@ entry:
 ; Check that the frame address is correct in a presence
 ; of a stack frame.
 define ptr @fp0f() nounwind {
-; CHECK-LABEL: fp0f:
+; CHECK-LABEL: fp0f DS 0H
 ; CHECK:         stmg 6,7,1904(4)
 ; CHECK-NEXT:    aghi 4,-160
 ; CHECK-NEXT:    la 3,2048(4)
@@ -30,7 +30,7 @@ entry:
 
 ; Check the caller's frame address.
 define ptr @fpcaller() nounwind "backchain" {
-; CHECK-LABEL: fpcaller:
+; CHECK-LABEL: fpcaller DS 0H
 ; CHECK:         stmg 4,7,2048(4)
 ; CHECK-NEXT:    lg 3,2048(4)
 ; CHECK-NEXT:    lmg 4,7,2048(4)
@@ -42,7 +42,7 @@ entry:
 
 ; Check the caller's frame address.
 define ptr @fpcallercaller() nounwind "backchain" {
-; CHECK-LABEL: fpcallercaller:
+; CHECK-LABEL: fpcallercaller DS 0H
 ; CHECK:         stmg 4,7,2048(4)
 ; CHECK-NEXT:    lg 1,2048(4)
 ; CHECK-NEXT:    lg 3,0(1)

diff  --git a/llvm/test/CodeGen/SystemZ/zos-func-alias.ll b/llvm/test/CodeGen/SystemZ/zos-func-alias.ll
index 7e93570e44534..ee862cafc6776 100644
--- a/llvm/test/CodeGen/SystemZ/zos-func-alias.ll
+++ b/llvm/test/CodeGen/SystemZ/zos-func-alias.ll
@@ -1,6 +1,6 @@
 ; Test function aliasing on z/OS
 ;
-; RUN: llc < %s -mtriple=s390x-ibm-zos -emit-gnuas-syntax-on-zos=0 | FileCheck %s
+; RUN: llc < %s -mtriple=s390x-ibm-zos | FileCheck %s
 
 ; CHECK:      ENTRY foo
 ; CHECK-NEXT: foo XATTR LINKAGE(XPLINK),REFERENCE(CODE),SCOPE(LIBRARY)

diff  --git a/llvm/test/CodeGen/SystemZ/zos-hlasm-out.ll b/llvm/test/CodeGen/SystemZ/zos-hlasm-out.ll
index e3d3b0d8825c1..a10686b85e810 100644
--- a/llvm/test/CodeGen/SystemZ/zos-hlasm-out.ll
+++ b/llvm/test/CodeGen/SystemZ/zos-hlasm-out.ll
@@ -1,6 +1,6 @@
 ; Test the HLASM streamer on z/OS to ensure there's no GNU syntax anywhere
 
-; RUN: llc < %s -mtriple=s390x-ibm-zos -emit-gnuas-syntax-on-zos=0 | FileCheck %s
+; RUN: llc < %s -mtriple=s390x-ibm-zos | FileCheck %s
 
 @.str = private unnamed_addr constant [10 x i8] c"Hello %s\0A\00", align 2
 @Greeting = global ptr @.str, align 8

diff  --git a/llvm/test/CodeGen/SystemZ/zos-intrinsics.ll b/llvm/test/CodeGen/SystemZ/zos-intrinsics.ll
index ccae97888d70c..99cfe8e34d266 100644
--- a/llvm/test/CodeGen/SystemZ/zos-intrinsics.ll
+++ b/llvm/test/CodeGen/SystemZ/zos-intrinsics.ll
@@ -1,4 +1,4 @@
-; RUN: llc -mtriple s390x-zos -emit-gnuas-syntax-on-zos=0 < %s | FileCheck %s
+; RUN: llc -mtriple s390x-zos < %s | FileCheck %s
 
 define float @sqrt_ieee(float %x) {
 entry:

diff  --git a/llvm/test/CodeGen/SystemZ/zos-jumptable.ll b/llvm/test/CodeGen/SystemZ/zos-jumptable.ll
index 4b11759874088..4c051306fb975 100644
--- a/llvm/test/CodeGen/SystemZ/zos-jumptable.ll
+++ b/llvm/test/CodeGen/SystemZ/zos-jumptable.ll
@@ -1,4 +1,4 @@
-; RUN: llc -mtriple s390x-zos -emit-gnuas-syntax-on-zos=0 < %s | FileCheck %s
+; RUN: llc -mtriple s390x-zos < %s | FileCheck %s
 
 define void @jumptable(i32 signext %in, ptr %out) {
 ; CHECK-LABEL: jumptable DS 0H

diff  --git a/llvm/test/CodeGen/SystemZ/zos-landingpad.ll b/llvm/test/CodeGen/SystemZ/zos-landingpad.ll
index 307f280617619..1ae1751f92634 100644
--- a/llvm/test/CodeGen/SystemZ/zos-landingpad.ll
+++ b/llvm/test/CodeGen/SystemZ/zos-landingpad.ll
@@ -19,7 +19,7 @@ done:
 lpad:
   %0 = landingpad { ptr, i32 } cleanup
 ; The Exception Pointer is %r1; the Exception Selector, %r2.
-; CHECK: L#BB{{[^%]*}} %lpad
+; CHECK: L#BB{{[^%]*}} DS 0H
 ; CHECK-DAG: stg 1,{{.*}}
 ; CHECK-DAG: st 2,{{.*}}
   %1 = extractvalue { ptr, i32 } %0, 0
@@ -31,13 +31,17 @@ lpad:
 }
 
 ; Check that offsets to the FD of the personality routine and LSDA are emitted in PPA1
-; CHECK: .byte 145 {{.*PPA1 Flags}}
-; CHECK: Bit 3: 1 = C++ EH block
-; TODO: Emit the value instead of a dummy value.
-; CHECK: Personality routine
-; CHECK: LSDA location
+; CHECK: * PPA1 Flags 4
+; CHECK: *   Bit 3: 1 = C++ EH block
+; CHECK: *   Bit 7: 1 = Name Length and Name
+; CHECK:  DC XL1'91'
+; CHECK: * Personality routine
+; CHECK:  DC XL8'0000000000000020'
+; CHECK: * LSDA location
+; CHECK:  DC XL8'0000000000000028'
 ; Check that the exception table is emitted into .lsda section.
 ; CHECK:  stdin#C CSECT
-; CHECK:  C_WSA64 CATTR ALIGN(2),FILL(0),NOTEXECUTABLE,RMODE(64),PART(.gcc_exception_table.test1)
-; CHECK:  .gcc_exception_table.test1 XATTR LINKAGE(XPLINK),REFERENCE(DATA),SCOPE(SECTION)
-; CHECK: GCC_except_table0:
+; CHECK: C_WSA64 CATTR ALIGN(2),FILL(0),NOTEXECUTABLE,RMODE(64),PART(.gcc_excepti
+; CHECK:                ion_table.test1)
+; CHECK: .gcc_exception_table.test1 XATTR LINKAGE(XPLINK),REFERENCE(DATA),SCOPE(S
+; CHECK:                SECTION)

diff  --git a/llvm/test/CodeGen/SystemZ/zos-lower-constant.ll b/llvm/test/CodeGen/SystemZ/zos-lower-constant.ll
index c91b39f72de08..64a51f8e43582 100644
--- a/llvm/test/CodeGen/SystemZ/zos-lower-constant.ll
+++ b/llvm/test/CodeGen/SystemZ/zos-lower-constant.ll
@@ -1,6 +1,6 @@
 ; Test lowering of constants on z/OS
 ;
-; RUN: llc < %s -mtriple=s390x-ibm-zos -emit-gnuas-syntax-on-zos=0 | FileCheck %s
+; RUN: llc < %s -mtriple=s390x-ibm-zos | FileCheck %s
 
 ; CHECK: func_s CSECT
 ; CHECK: DC AD(AD({{.*}}#S)+XL8'0')

diff  --git a/llvm/test/CodeGen/SystemZ/zos-no-eh-label.ll b/llvm/test/CodeGen/SystemZ/zos-no-eh-label.ll
index 43ac737b29778..b28f0dd17599a 100644
--- a/llvm/test/CodeGen/SystemZ/zos-no-eh-label.ll
+++ b/llvm/test/CodeGen/SystemZ/zos-no-eh-label.ll
@@ -1,4 +1,4 @@
-; RUN: llc -mtriple s390x-ibm-zos -emit-gnuas-syntax-on-zos=false < %s | FileCheck %s
+; RUN: llc -mtriple s390x-ibm-zos < %s | FileCheck %s
 
 define signext i32 @_Z9computeitv() personality ptr @__zos_cxx_personality_v2 {
   ret i32 0

diff  --git a/llvm/test/CodeGen/SystemZ/zos-ppa1-argarea.ll b/llvm/test/CodeGen/SystemZ/zos-ppa1-argarea.ll
index 511bc46567607..32a59e5ba3ea9 100644
--- a/llvm/test/CodeGen/SystemZ/zos-ppa1-argarea.ll
+++ b/llvm/test/CodeGen/SystemZ/zos-ppa1-argarea.ll
@@ -1,4 +1,4 @@
-; RUN: llc < %s -mtriple=s390x-ibm-zos -emit-gnuas-syntax-on-zos=0 | FileCheck %s
+; RUN: llc < %s -mtriple=s390x-ibm-zos | FileCheck %s
 %struct.LargeStruct_t = type { [33 x i32] }
 
 @GlobLargeS = hidden global %struct.LargeStruct_t zeroinitializer, align 4

diff  --git a/llvm/test/CodeGen/SystemZ/zos-ppa1.ll b/llvm/test/CodeGen/SystemZ/zos-ppa1.ll
index 78593b9f88d1e..f73edfc6ba42e 100644
--- a/llvm/test/CodeGen/SystemZ/zos-ppa1.ll
+++ b/llvm/test/CodeGen/SystemZ/zos-ppa1.ll
@@ -1,33 +1,53 @@
 ; RUN: llc -mtriple s390x-ibm-zos < %s | FileCheck %s
 
-; CHECK: L#EPM_void_test_0: * @void_test
 ; CHECK: * XPLINK Routine Layout Entry
-; CHECK: .long   12779717 * Eyecatcher 0x00C300C500C500
-; CHECK: .short  197
-; CHECK: .byte   0
-; CHECK: .byte   241 * Mark Type C'1'
-; CHECK: .long   8 * DSA Size 0x0
+; CHECK: L#EPM_void_test_0 DS 0H
+; CHECK: * Eyecatcher 0x00C300C500C500
+; CHECK:  DC XL7'00C300C500C500'
+; CHECK: * Mark Type C'1'
+; CHECK:  DC XL1'F1'
+; CHECK: * Offset to PPA1
+; CHECK:  DC AD(L#PPA1_void_test_0-L#EPM_void_test_0)
+; CHECK: * DSA Size 0x0
 ; CHECK: * Entry Flags
 ; CHECK: *   Bit 1: 1 = Leaf function
 ; CHECK: *   Bit 2: 0 = Does not use alloca
-; CHECK: L#func_end0:
+; CHECK:  DC XL4'00000008'
+; CHECK:  ENTRY void_test
+; CHECK: L#func_end0 DS 0H
 ; CHECK: stdin#C CSECT
 ; CHECK: C_CODE64 CATTR
-; CHECK: L#PPA1_void_test_0:                     * PPA1
-; CHECK:        .byte   2                               * Version
-; CHECK:        .byte   206                             * LE Signature X'CE'
-; CHECK:        .short  0                               * Saved GPR Mask
-; CHECK:        .byte   128                             * PPA1 Flags 1
-; CHECK:                                        *   Bit 0: 1 = 64-bit DSA
-; CHECK:        .byte   128                             * PPA1 Flags 2
-; CHECK:                                        *   Bit 0: 1 = External procedure
-; CHECK:                                        *   Bit 3: 0 = STACKPROTECT is not enabled
-; CHECK:         .byte   0                               * PPA1 Flags 3
-; CHECK:        .byte   129                             * PPA1 Flags 4
-; CHECK:        .short  0                               * Length/4 of Parms
-; CHECK:        .long   L#func_end0-L#EPM_void_test_0   * Length of Code
-; CHECK:        .long   L#EPM_void_test_0-L#PPA1_void_test_0
-; CHECK:                                        * -- End function
+; CHECK: * PPA1
+; CHECK: L#PPA1_void_test_0 DS 0H
+; CHECK: * Version
+; CHECK:  DC XL1'02'
+; CHECK: * LE Signature X'CE'
+; CHECK:  DC XL1'CE'
+; CHECK: * Saved GPR Mask
+; CHECK:  DC XL2'0000'
+; CHECK: * Offset to PPA2
+; CHECK:  DC AD(L#PPA2-L#PPA1_void_test_0)
+; CHECK: * PPA1 Flags 1
+; CHECK: *   Bit 0: 1 = 64-bit DSA
+; CHECK:  DC XL1'80'
+; CHECK: * PPA1 Flags 2
+; CHECK: *   Bit 0: 1 = External procedure
+; CHECK: *   Bit 3: 0 = STACKPROTECT is not enabled
+; CHECK:  DC XL1'80'
+; CHECK: * PPA1 Flags 3
+; CHECK:  DC XL1'00'
+; CHECK: * PPA1 Flags 4
+; CHECK: *   Bit 7: 1 = Name Length and Name
+; CHECK:  DC XL1'81'
+; CHECK: * Length/4 of Parms
+; CHECK:  DC XL2'0000'
+; CHECK: * Length of Code
+; CHECK:  DC AD(L#func_end0-L#EPM_void_test_0)
+; CHECK: * Length of Name
+; CHECK:  DC XL2'0009'
+; CHECK: * Name of Function
+; CHECK:  DC XL9'A59689846DA385A2A3'
+; CHECK: DC AD(L#EPM_void_test_0-L#PPA1_void_test_0)
 define void @void_test() {
 entry:
   ret void

diff  --git a/llvm/test/CodeGen/SystemZ/zos-ppa2.ll b/llvm/test/CodeGen/SystemZ/zos-ppa2.ll
index bf059f9083df0..a4c1d50df5543 100644
--- a/llvm/test/CodeGen/SystemZ/zos-ppa2.ll
+++ b/llvm/test/CodeGen/SystemZ/zos-ppa2.ll
@@ -1,35 +1,44 @@
-; RUN: sed -e 's/!"MODE"/!"ascii"/' -e 's/BYTE/133/' %s > %t.ascii.ll
+; RUN: sed -e 's/!"MODE"/!"ascii"/' -e 's/BYTE/85/' %s > %t.ascii.ll
 ; RUN: llc -mtriple s390x-ibm-zos -mcpu=z15 -asm-verbose=true < %t.ascii.ll | \
 ; RUN: FileCheck %t.ascii.ll
 
-; RUN: sed -e 's/!"MODE"/!"ebcdic"/' -e 's/BYTE/129/' %s > %t.ebcdic.ll
+; RUN: sed -e 's/!"MODE"/!"ebcdic"/' -e 's/BYTE/81/' %s > %t.ebcdic.ll
 ; RUN: llc -mtriple s390x-ibm-zos -mcpu=z15 -asm-verbose=true < %t.ebcdic.ll | \
 ; RUN: FileCheck %t.ebcdic.ll
 
 ; CHECK: C_CODE64 CATTR
-; CHECK: L#PPA2:
-; CHECK:    .byte   3
-; CHECK:    .byte   231
-; CHECK:    .byte   34
-; CHECK:    .byte   4
-; CHECK:    .long   CELQSTRT-L#PPA2
-; CHECK:    .long   0
-; CHECK:    .long   L#DVS-L#PPA2
-; CHECK:    .long   0
-; CHECK:    .byte   BYTE
-; CHECK:    .byte   0
-; CHECK:    .short  0
-; CHECK: L#DVS:
-; CHECK:    .ascii  "\361\371\367\360\360\361\360\361\360\360\360\360\360\360"
-; CHECK:    .short  0
-; CHECK:    .quad   L#PPA2-CELQSTRT                 * A(PPA2-CELQSTRT)
-; CHECK: L#PPA1_void_test_0:
-; CHECK:    .long   L#PPA2-L#PPA1_void_test_0       * Offset to PPA2
-; CHECK: B_IDRL CATTR
-; CHECK:    .byte   0
-; CHECK:    .byte   3
-; CHECK:    .short  30
-; CHECK:    .ascii  "\323\323\345\324@@@@@@{{((\\3[0-7]{2}){4})}}\361\371\367\360\360\361\360\361\360\360\360\360\360\360\360\360"
+; CHECK: L#PPA2 DS 0H
+; CHECK:  DC XL1'03'
+; CHECK:  DC XL1'E7'
+; CHECK:  DC XL1'22'
+; CHECK:  DC XL1'04'
+; CHECK:  DC AD(CELQSTRT-L#PPA2)
+; CHECK:  DC XL4'00000000'
+; CHECK:  DC AD(L#DVS-L#PPA2)
+; CHECK:  DC XL4'00000000'
+; CHECK:  DC XL1'BYTE'
+; CHECK:  DC XL1'00'
+; CHECK:  DC XL2'0000'
+; CHECK: L#DVS DS 0H
+; CHECK:  DC XL14'F1F9F7F0F0F1F0F1F0F0F0F0F0F0'
+; CHECK:  DC XL6'F2F3F0F0F0F0'
+; CHECK:  DC XL2'0000'
+
+; CHECK: C_@@QPPA2 CATTR ALIGN(3),FILL(0),NOTEXECUTABLE,READONLY,RMODE(64),PART(.
+; CHECK:                .&ppa2)
+; CHECK: .&ppa2 XATTR LINKAGE(OS),REFERENCE(DATA),SCOPE(SECTION)
+; CHECK: * A(PPA2-CELQSTRT)
+; CHECK:  DC AD(L#PPA2-CELQSTRT)
+
+; CHECK: L#EPM_void_test_0 DS 0H
+; CHECK: * Offset to PPA1
+; CHECK:  DC AD(L#PPA1_void_test_0-L#EPM_void_test_0)
+ 
+; CHECK: B_IDRL CATTR ALIGN(3),FILL(0),NOLOAD,READONLY,RMODE(64)
+; CHECK:  DC XL1'00'
+; CHECK:  DC XL1'03'
+; CHECK:  DC XL2'001E'
+; CHECK:  DC XL30'D3D3E5D4404040404040{{([[:xdigit:]]{8})}}F1F9F7F0F0F1F0F1F0F0F0F0F0F0F0F0'
 
 !llvm.module.flags = !{!0}
 !0 = !{i32 1, !"zos_le_char_mode", !"MODE"}

diff  --git a/llvm/test/CodeGen/SystemZ/zos-prologue-epilog.ll b/llvm/test/CodeGen/SystemZ/zos-prologue-epilog.ll
index 458b27460763f..ecf778a36755b 100644
--- a/llvm/test/CodeGen/SystemZ/zos-prologue-epilog.ll
+++ b/llvm/test/CodeGen/SystemZ/zos-prologue-epilog.ll
@@ -5,7 +5,7 @@
 ; Test prolog/epilog for non-XPLEAF.
 
 ; Small stack frame.
-; CHECK-LABEL: func0
+; CHECK-LABEL: func0 DS 0H
 ; CHECK64: stmg  6,7,1872(4)
 ; stmg instruction's displacement field must be 2064-dsa_size
 ; as per ABI
@@ -15,15 +15,16 @@
 ; CHECK64: aghi  4,192
 ; CHECK64: b 2(7)
 
-; CHECK64: L#PPA1_func0_0:
-; CHECK64: .short	0  * Length/4 of Parms
+; CHECK64: L#PPA1_func0_0 DS 0H
+; CHECK64: * Length/4 of Parms
+; CHECK64:  DC XL2'0000'
 define void @func0() {
   call i64 (i64) @fun(i64 10) 
   ret void
 }
 
 ; Spill all GPR CSRs
-; CHECK-LABEL: func1
+; CHECK-LABEL: func1 DS 0H
 ; CHECK64: stmg 6,15,1904(4)
 ; CHECK64: aghi  4,-160
 
@@ -31,8 +32,9 @@ define void @func0() {
 ; CHECK64: aghi  4,160
 ; CHECK64: b 2(7)
 
-; CHECK64: L#PPA1_func1_0:
-; CHECK64: .short	2  * Length/4 of Parms
+; CHECK64: L#PPA1_func1_0 DS 0H
+; CHECK64: * Length/4 of Parms
+; CHECK64:  DC XL2'0002'
 define void @func1(ptr %ptr) {
   %l01 = load volatile i64, ptr %ptr
   %l02 = load volatile i64, ptr %ptr
@@ -84,42 +86,42 @@ define void @func1(ptr %ptr) {
 
 
 ; Spill all FPRs and VRs
-; CHECK-LABEL: func2
+; CHECK-LABEL: func2 DS 0H
 ; CHECK64: stmg	6,7,1744(4)
 ; CHECK64: aghi  4,-320
-; CHECK64: vst  16,{{[0-9]+}}(4),4                   * 16-byte Spill
-; CHECK64: vst  17,{{[0-9]+}}(4),4                   * 16-byte Spill
-; CHECK64: vst  18,{{[0-9]+}}(4),4                   * 16-byte Spill
-; CHECK64: vst  19,{{[0-9]+}}(4),4                   * 16-byte Spill
-; CHECK64: vst  20,{{[0-9]+}}(4),4                   * 16-byte Spill
-; CHECK64: vst  21,{{[0-9]+}}(4),4                   * 16-byte Spill
-; CHECK64: vst  22,{{[0-9]+}}(4),4                   * 16-byte Spill
-; CHECK64: vst  23,{{[0-9]+}}(4),4                   * 16-byte Spill
-; CHECK64: std	8,{{[0-9]+}}(4)                       * 8-byte Spill
-; CHECK64: std	9,{{[0-9]+}}(4)                       * 8-byte Spill
-; CHECK64: std	10,{{[0-9]+}}(4)                      * 8-byte Spill
-; CHECK64: std	11,{{[0-9]+}}(4)                      * 8-byte Spill
-; CHECK64: std	12,{{[0-9]+}}(4)                      * 8-byte Spill
-; CHECK64: std	13,{{[0-9]+}}(4)                      * 8-byte Spill
-; CHECK64: std	14,{{[0-9]+}}(4)                      * 8-byte Spill
-; CHECK64: std	15,{{[0-9]+}}(4)                      * 8-byte Spill
+; CHECK64: vst  16,{{[0-9]+}}(4),4
+; CHECK64: vst  17,{{[0-9]+}}(4),4
+; CHECK64: vst  18,{{[0-9]+}}(4),4
+; CHECK64: vst  19,{{[0-9]+}}(4),4
+; CHECK64: vst  20,{{[0-9]+}}(4),4
+; CHECK64: vst  21,{{[0-9]+}}(4),4
+; CHECK64: vst  22,{{[0-9]+}}(4),4
+; CHECK64: vst  23,{{[0-9]+}}(4),4
+; CHECK64: std	8,{{[0-9]+}}(4)
+; CHECK64: std	9,{{[0-9]+}}(4)
+; CHECK64: std	10,{{[0-9]+}}(4)
+; CHECK64: std	11,{{[0-9]+}}(4)
+; CHECK64: std	12,{{[0-9]+}}(4)
+; CHECK64: std	13,{{[0-9]+}}(4)
+; CHECK64: std	14,{{[0-9]+}}(4)
+; CHECK64: std	15,{{[0-9]+}}(4)
 
-; CHECK64: vl   16,{{[0-9]+}}(4),4                   * 16-byte Reload
-; CHECK64: vl   17,{{[0-9]+}}(4),4                   * 16-byte Reload
-; CHECK64: vl   18,{{[0-9]+}}(4),4                   * 16-byte Reload
-; CHECK64: vl   19,{{[0-9]+}}(4),4                   * 16-byte Reload
-; CHECK64: vl   20,{{[0-9]+}}(4),4                   * 16-byte Reload
-; CHECK64: vl   21,{{[0-9]+}}(4),4                   * 16-byte Reload
-; CHECK64: vl   22,{{[0-9]+}}(4),4                   * 16-byte Reload
-; CHECK64: vl   23,{{[0-9]+}}(4),4                   * 16-byte Reload
-; CHECK64: ld	8,{{[0-9]+}}(4)                       * 8-byte Reload
-; CHECK64: ld	9,{{[0-9]+}}(4)                       * 8-byte Reload
-; CHECK64: ld	10,{{[0-9]+}}(4)                      * 8-byte Reload
-; CHECK64: ld	11,{{[0-9]+}}(4)                      * 8-byte Reload
-; CHECK64: ld	12,{{[0-9]+}}(4)                      * 8-byte Reload
-; CHECK64: ld	13,{{[0-9]+}}(4)                      * 8-byte Reload
-; CHECK64: ld	14,{{[0-9]+}}(4)                      * 8-byte Reload
-; CHECK64: ld	15,{{[0-9]+}}(4)                      * 8-byte Reload
+; CHECK64: vl   16,{{[0-9]+}}(4),4
+; CHECK64: vl   17,{{[0-9]+}}(4),4
+; CHECK64: vl   18,{{[0-9]+}}(4),4
+; CHECK64: vl   19,{{[0-9]+}}(4),4
+; CHECK64: vl   20,{{[0-9]+}}(4),4
+; CHECK64: vl   21,{{[0-9]+}}(4),4
+; CHECK64: vl   22,{{[0-9]+}}(4),4
+; CHECK64: vl   23,{{[0-9]+}}(4),4
+; CHECK64: ld	8,{{[0-9]+}}(4)
+; CHECK64: ld	9,{{[0-9]+}}(4)
+; CHECK64: ld	10,{{[0-9]+}}(4)
+; CHECK64: ld	11,{{[0-9]+}}(4)
+; CHECK64: ld	12,{{[0-9]+}}(4)
+; CHECK64: ld	13,{{[0-9]+}}(4)
+; CHECK64: ld	14,{{[0-9]+}}(4)
+; CHECK64: ld	15,{{[0-9]+}}(4)
 ; CHECK64: lg  7,2072(4)
 ; CHECK64: aghi  4,320
 ; CHECK64: b 2(7)
@@ -342,7 +344,6 @@ bb3:
 ; CHECK64-NEXT: llgt  3,1208
 ; CHECK64-NEXT: cg  4,64(3)
 ; CHECK64-NEXT: jhe
-; CHECK64: * %bb.1:
 ; CHECK64: lg  3,72(3)
 ; CHECK64: basr  3,3
 ; CHECK64: stmg  6,7,2064(4)
@@ -352,22 +353,22 @@ define void @large_stack0() {
   ret void
 }
 
-; CHECK-LABEL: large_stack1
+; CHECK-LABEL: large_stack1 DS 0H
 ; CHECK64: agfi  4,-1048800
 ; CHECK64: lgr 0,3
 ; CHECK64: llgt  3,1208
 ; CHECK64: cg  4,64(3)
 ; CHECK64: jhe L#BB8_2
-; CHECK64: %bb.1:
 ; CHECK64: lg  3,72(3)
 ; CHECK64: basr  3,3
 ; CHECK64: bcr 0,7
-; CHECK64: L#BB8_2:
+; CHECK64: L#BB8_2 DS 0H
 ; CHECK64: stmg  6,7,2064(4)
 ; CHECK64: lgr 3,0
 
-; CHECK64: L#PPA1_large_stack1_0:
-; CHECK64: .short	6  * Length/4 of Parms
+; CHECK64: L#PPA1_large_stack1_0 DS 0H
+; CHECK64: * Length/4 of Parms
+; CHECK64:  DC XL2'0006'
 define void @large_stack1(i64 %n1, i64 %n2, i64 %n3) {
   %arr = alloca [131072 x i64], align 8
   call i64 (ptr, i64, i64, i64) @fun3(ptr %arr,
@@ -383,11 +384,10 @@ define void @large_stack1(i64 %n1, i64 %n2, i64 %n3) {
 ; CHECK64: llgt  3,1208
 ; CHECK64: cg  4,64(3)
 ; CHECK64: jhe L#BB9_2
-; CHECK64: %bb.1:
 ; CHECK64: lg  3,72(3)
 ; CHECK64: basr  3,3
 ; CHECK64: bcr 0,7
-; CHECK64: L#BB9_2:
+; CHECK64: L#BB9_2 DS 0H
 ; CHECK64: lgr 3,0
 ; CHECK64: lg  3,2192(3)
 ; CHECK64: stmg  4,12,2048(4)
@@ -400,11 +400,13 @@ define void @large_stack2(i64 %n1, i64 %n2, i64 %n3) {
   ret void
 }
 
-; CHECK-LABEL: leaf_func
-; CHECK: .long	8 * DSA Size 0x0
-; CHECK-NEXT:     * Entry Flags
-; CHECK-NEXT:     *   Bit 1: 1 = Leaf function
-; CHECK-NEXT:     *   Bit 2: 0 = Does not use alloca
+; CHECK-LABEL: L#EPM_leaf_func0_0 DS 0H
+; CHECK: * DSA Size 0x0
+; CHECK: * Entry Flags
+; CHECK: *   Bit 1: 1 = Leaf function
+; CHECK: *   Bit 2: 0 = Does not use alloca
+; CHECK:  DC XL4'00000008'
+; CHECK-LABEL: leaf_func0 DS 0H
 ; CHECK-NOT: aghi  4,
 ; CHECK-NOT: stmg
 ; CHECK: agr	1,2
@@ -423,17 +425,18 @@ define i64 @leaf_func0(i64 %a, i64 %b, i64 %c) {
 ; =============================
 ;     Tests for PPA1 Fields
 ; =============================
-; CHECK-LABEL: named_func
-; CHECK: .byte	129  * PPA1 Flags 4
+; CHECK-LABEL: named_func DS 0H
+; CHECK:      * PPA1 Flags 4
 ; CHECK-NEXT: *   Bit 7: 1 = Name Length and Name
+; CHECK-NEXT:  DC XL1'81'
 define i64 @named_func(i64 %arg) {
   %sum = add i64 1, %arg
   ret i64 %sum
 }
 
-; CHECK-LABEL: __unnamed_1
-; CHECK: .byte	128  * PPA1 Flags 4
-; CHECK-NOT: *   Bit 7: 1 = Name Length and Name
+; CHECK-LABEL: __unnamed_1 DS 0H
+; CHECK:      * PPA1 Flags 4
+; CHECK-NEXT:  DC XL1'80'
 define void @""(ptr %p) {
   call i64 (ptr) @fun1(ptr %p)
   ret void

diff  --git a/llvm/test/CodeGen/SystemZ/zos-ret-addr.ll b/llvm/test/CodeGen/SystemZ/zos-ret-addr.ll
index 483376051a872..ce59020dda4b2 100644
--- a/llvm/test/CodeGen/SystemZ/zos-ret-addr.ll
+++ b/llvm/test/CodeGen/SystemZ/zos-ret-addr.ll
@@ -3,7 +3,7 @@
 
 ; The current function's return address is in the link register.
 define ptr @rt0() norecurse nounwind readnone {
-; CHECK-LABEL: rt0:
+; CHECK-LABEL: rt0 DS 0H
 ; CHECK:         lgr 3,7
 ; CHECK-NEXT:    b 2(7)
 entry:
@@ -13,7 +13,7 @@ entry:
 
 ; Check the caller's return address.
 define ptr @rtcaller() nounwind "backchain" {
-; CHECK-LABEL: rtcaller:
+; CHECK-LABEL: rtcaller DS 0H
 ; CHECK:         stmg 4,7,2048(4)
 ; CHECK-NEXT:    lg 1,2048(4)
 ; CHECK-NEXT:    lg 3,24(1)
@@ -26,7 +26,7 @@ entry:
 
 ; Check the caller's caller's return address.
 define ptr @rtcallercaller() nounwind "backchain" {
-; CHECK-LABEL: rtcallercaller:
+; CHECK-LABEL: rtcallercaller DS 0H
 ; CHECK:         stmg 4,7,2048(4)
 ; CHECK-NEXT:    lg 1,2048(4)
 ; CHECK-NEXT:    lg 1,0(1)

diff  --git a/llvm/test/CodeGen/SystemZ/zos-simple-test.ll b/llvm/test/CodeGen/SystemZ/zos-simple-test.ll
index f1f7cee8268f7..a185fc7016a07 100644
--- a/llvm/test/CodeGen/SystemZ/zos-simple-test.ll
+++ b/llvm/test/CodeGen/SystemZ/zos-simple-test.ll
@@ -7,11 +7,10 @@
 define signext i32 @main() {
 ; CHECK: stdin#C CSECT
 ; CHECK: C_CODE64 CATTR ALIGN(3),FILL(0),READONLY,RMODE(64)
-; CHECK: main:
+; CHECK: main DS 0H
 ; CHECK: stdin#C CSECT
 ; CHECK: C_WSA64 CATTR ALIGN(2),FILL(0),DEFLOAD,NOTEXECUTABLE,RMODE(64),PART(a)
 ; CHECK: a XATTR LINKAGE(XPLINK),REFERENCE(DATA),SCOPE(EXPORT)
-; CHECK: a:
 entry:
   ret i32 0
 }

diff  --git a/llvm/test/CodeGen/SystemZ/zos-stackpointer.ll b/llvm/test/CodeGen/SystemZ/zos-stackpointer.ll
index 4f4f650f51a77..d40933cd8d1d8 100644
--- a/llvm/test/CodeGen/SystemZ/zos-stackpointer.ll
+++ b/llvm/test/CodeGen/SystemZ/zos-stackpointer.ll
@@ -1,6 +1,6 @@
 ; RUN: llc < %s -mtriple=s390x-ibm-zos | FileCheck %s
 
-; CHECK-LABEL: get_stack:
+; CHECK-LABEL: get_stack DS 0H
 ; CHECK: lgr   3,4
 ; CHECK: b 2(7)
 

diff  --git a/llvm/test/CodeGen/SystemZ/zos-symbol-1.ll b/llvm/test/CodeGen/SystemZ/zos-symbol-1.ll
index 92cb6371a7c50..3e737dd66c514 100644
--- a/llvm/test/CodeGen/SystemZ/zos-symbol-1.ll
+++ b/llvm/test/CodeGen/SystemZ/zos-symbol-1.ll
@@ -1,4 +1,4 @@
-; RUN: llc <%s --mtriple s390x-ibm-zos -emit-gnuas-syntax-on-zos=false | FileCheck %s
+; RUN: llc <%s --mtriple s390x-ibm-zos | FileCheck %s
 
 declare extern_weak void @other1(...)
 declare void @other2(...)

diff  --git a/llvm/test/CodeGen/SystemZ/zos-symbol-2.ll b/llvm/test/CodeGen/SystemZ/zos-symbol-2.ll
index ffea210fa9c7b..663c01ccd80dc 100644
--- a/llvm/test/CodeGen/SystemZ/zos-symbol-2.ll
+++ b/llvm/test/CodeGen/SystemZ/zos-symbol-2.ll
@@ -1,4 +1,4 @@
-; RUN: llc <%s --mtriple s390x-ibm-zos -emit-gnuas-syntax-on-zos=false | FileCheck %s
+; RUN: llc <%s --mtriple s390x-ibm-zos | FileCheck %s
 ; RUN: llc <%s --mtriple s390x-ibm-zos --filetype=obj | \
 ; RUN:   od -Ax -tx1 -v | FileCheck --check-prefix=CHECKREL --ignore-case %s
 

diff  --git a/llvm/test/CodeGen/SystemZ/zos_sinit.ll b/llvm/test/CodeGen/SystemZ/zos_sinit.ll
index 447dec345e175..4b154d6597090 100644
--- a/llvm/test/CodeGen/SystemZ/zos_sinit.ll
+++ b/llvm/test/CodeGen/SystemZ/zos_sinit.ll
@@ -1,4 +1,4 @@
-; RUN: llc -emit-gnuas-syntax-on-zos=false < %s -mtriple=s390x-ibm-zos | \
+; RUN: llc < %s -mtriple=s390x-ibm-zos | \
 ; RUN: FileCheck --check-prefixes=CHECK %s
 
 @llvm.global_ctors = appending global [1 x { i32, ptr, ptr }] [{ i32, ptr, ptr } { i32 22, ptr @cfuncctor, ptr null }]

diff  --git a/llvm/test/MC/SystemZ/insn-good-zos-pcrel.s b/llvm/test/MC/SystemZ/insn-good-zos-pcrel.s
index 0acbe26d75b15..07bf680f48b1d 100644
--- a/llvm/test/MC/SystemZ/insn-good-zos-pcrel.s
+++ b/llvm/test/MC/SystemZ/insn-good-zos-pcrel.s
@@ -1,5 +1,5 @@
 * For z10 and above.
-* RUN: llvm-mc -triple s390x-ibm-zos -show-encoding %s | FileCheck %s
+* RUN: llvm-mc -triple s390x-ibm-zos -show-encoding -emit-gnuas-syntax-on-zos=1 %s | FileCheck %s
 
 *CHECK: brcl	0, FOO                  * encoding: [0xc0,0x04,A,A,A,A]
 *CHECK:  fixup A - offset: 2, value: FOO+2, kind: FK_390_PC32DBL


        


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