[llvm] Introduce MCAsmInfo::UsesSetToEquateSymbol and prefer = to .set (PR #142289)

via llvm-commits llvm-commits at lists.llvm.org
Sat May 31 14:09:14 PDT 2025


llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-backend-arm

Author: Fangrui Song (MaskRay)

<details>
<summary>Changes</summary>

Introduce MCAsmInfo::UsesSetToEquateSymbol to control the preferred
syntax for symbol equating. We now favor the more readable and common
`symbol = expression` syntax over `.set`. This aligns with pre-D44256 behavior.

On Apple platforms, this resolves a clang -S vs -c behavior difference (resolves #<!-- -->104623).

For targets whose = support is unconfirmed, UsesSetToEquateSymbol is set to false.
This also minimizes test updates.


---

Patch is 58.01 KiB, truncated to 20.00 KiB below, full version: https://github.com/llvm/llvm-project/pull/142289.diff


67 Files Affected:

- (modified) llvm/include/llvm/MC/MCAsmInfo.h (+4) 
- (modified) llvm/lib/MC/MCAsmStreamer.cpp (+4-2) 
- (modified) llvm/lib/Target/AMDGPU/MCTargetDesc/AMDGPUMCAsmInfo.cpp (+1) 
- (modified) llvm/lib/Target/Hexagon/MCTargetDesc/HexagonMCAsmInfo.cpp (+1) 
- (modified) llvm/lib/Target/PowerPC/MCTargetDesc/PPCMCAsmInfo.cpp (+2) 
- (modified) llvm/lib/Target/SystemZ/MCTargetDesc/SystemZMCAsmInfo.cpp (+1) 
- (modified) llvm/test/CodeGen/AArch64/arm64ec-alias.ll (+7-7) 
- (modified) llvm/test/CodeGen/AArch64/arm64ec-hybrid-patchable.ll (+9-9) 
- (modified) llvm/test/CodeGen/AArch64/arm64ec-symbols.ll (+3-3) 
- (modified) llvm/test/CodeGen/AArch64/arm64ec-varargs.ll (+8-8) 
- (modified) llvm/test/CodeGen/AArch64/ehcontguard.ll (+1-1) 
- (modified) llvm/test/CodeGen/AArch64/global-merge-1.ll (+4-4) 
- (modified) llvm/test/CodeGen/AArch64/global-merge-2.ll (+6-6) 
- (modified) llvm/test/CodeGen/AArch64/global-merge-3.ll (+5-5) 
- (modified) llvm/test/CodeGen/AArch64/global-merge-hidden-minsize.ll (+2-2) 
- (modified) llvm/test/CodeGen/AArch64/ifunc-asm.ll (+1-1) 
- (modified) llvm/test/CodeGen/AArch64/seh-finally.ll (+4-4) 
- (modified) llvm/test/CodeGen/AArch64/stackguard-internal.ll (+1-1) 
- (modified) llvm/test/CodeGen/ARM/alias_store.ll (+1-1) 
- (modified) llvm/test/CodeGen/ARM/aliases.ll (+7-7) 
- (modified) llvm/test/CodeGen/ARM/global-merge-dllexport.ll (+2-2) 
- (modified) llvm/test/CodeGen/ARM/global-merge-external-2.ll (+6-6) 
- (modified) llvm/test/CodeGen/ARM/global-merge-external.ll (+6-6) 
- (modified) llvm/test/CodeGen/AVR/global-aliases.ll (+14-14) 
- (modified) llvm/test/CodeGen/Mips/hf16call32_body.ll (+12-12) 
- (modified) llvm/test/CodeGen/Mips/mips16ex.ll (+1-1) 
- (modified) llvm/test/CodeGen/PowerPC/asm-printer-topological-order.ll (+3-3) 
- (modified) llvm/test/CodeGen/PowerPC/data-align.ll (+5-5) 
- (modified) llvm/test/CodeGen/WebAssembly/aliases.ll (+11-11) 
- (modified) llvm/test/CodeGen/WinCFGuard/cfguard-mingw.ll (+1-1) 
- (modified) llvm/test/CodeGen/WinCFGuard/cfguard.ll (+1-1) 
- (modified) llvm/test/CodeGen/X86/2007-09-06-ExtWeakAliasee.ll (+1-1) 
- (modified) llvm/test/CodeGen/X86/2009-08-12-badswitch.ll (+25-25) 
- (modified) llvm/test/CodeGen/X86/2010-05-26-DotDebugLoc.ll (+4-4) 
- (modified) llvm/test/CodeGen/X86/alias-gep.ll (+4-4) 
- (modified) llvm/test/CodeGen/X86/aliases.ll (+4-4) 
- (modified) llvm/test/CodeGen/X86/catchret-empty-fallthrough.ll (+1-1) 
- (modified) llvm/test/CodeGen/X86/coff-alias-type.ll (+1-1) 
- (modified) llvm/test/CodeGen/X86/coff-comdat.ll (+1-1) 
- (modified) llvm/test/CodeGen/X86/coff-feat00.ll (+1-1) 
- (modified) llvm/test/CodeGen/X86/dllexport-x86_64.ll (+5-5) 
- (modified) llvm/test/CodeGen/X86/dllexport.ll (+4-4) 
- (modified) llvm/test/CodeGen/X86/ehcontguard.ll (+1-1) 
- (modified) llvm/test/CodeGen/X86/fastcall-correct-mangling.ll (+2-2) 
- (modified) llvm/test/CodeGen/X86/ifunc-asm.ll (+1-1) 
- (modified) llvm/test/CodeGen/X86/lea-opt-memop-check-1.ll (+3-3) 
- (modified) llvm/test/CodeGen/X86/linux-preemption.ll (+8-8) 
- (modified) llvm/test/CodeGen/X86/localescape.ll (+8-8) 
- (modified) llvm/test/CodeGen/X86/pr22019.ll (+4-4) 
- (modified) llvm/test/CodeGen/X86/seh-catch-all-win32.ll (+2-2) 
- (modified) llvm/test/CodeGen/X86/seh-catchpad.ll (+1-1) 
- (modified) llvm/test/CodeGen/X86/seh-finally.ll (+1-1) 
- (modified) llvm/test/CodeGen/X86/seh-no-invokes.ll (+1-1) 
- (modified) llvm/test/CodeGen/X86/seh-stack-realign.ll (+2-2) 
- (modified) llvm/test/CodeGen/X86/tailcall-cgp-dup.ll (+6-6) 
- (modified) llvm/test/CodeGen/X86/windows-seh-EHa-TryInFinally.ll (+1-1) 
- (modified) llvm/test/CodeGen/XCore/globals.ll (+1-1) 
- (modified) llvm/test/CodeGen/XCore/linkage.ll (+2-2) 
- (modified) llvm/test/MC/AArch64/basic-a64-instructions.s (+1-1) 
- (modified) llvm/test/MC/AsmParser/assignment.s (+6-6) 
- (modified) llvm/test/MC/AsmParser/directive_include.s (+1-1) 
- (modified) llvm/test/MC/AsmParser/directive_set.s (+3-3) 
- (modified) llvm/test/MC/AsmParser/include.ll (+2-2) 
- (modified) llvm/test/MC/AsmParser/labels.s (+3-3) 
- (modified) llvm/test/MC/AsmParser/macro-arg-darwin.s (+2-2) 
- (modified) llvm/test/MC/AsmParser/motorola_integers.s (+8-8) 
- (modified) llvm/test/MC/Mips/cpsetup.s (+1-1) 


``````````diff
diff --git a/llvm/include/llvm/MC/MCAsmInfo.h b/llvm/include/llvm/MC/MCAsmInfo.h
index 3a31957f2f6be..f656f364981d2 100644
--- a/llvm/include/llvm/MC/MCAsmInfo.h
+++ b/llvm/include/llvm/MC/MCAsmInfo.h
@@ -140,6 +140,9 @@ class MCAsmInfo {
   /// This is appended to emitted labels.  Defaults to ":"
   const char *LabelSuffix;
 
+  /// Use .set instead of = to equate a symbol to an expression.
+  bool UsesSetToEquateSymbol = false;
+
   // Print the EH begin symbol with an assignment. Defaults to false.
   bool UseAssignmentForEHBegin = false;
 
@@ -520,6 +523,7 @@ class MCAsmInfo {
   bool shouldAllowAdditionalComments() const { return AllowAdditionalComments; }
   const char *getLabelSuffix() const { return LabelSuffix; }
 
+  bool usesSetToEquateSymbol() const { return UsesSetToEquateSymbol; }
   bool useAssignmentForEHBegin() const { return UseAssignmentForEHBegin; }
   bool needsLocalForSize() const { return NeedsLocalForSize; }
   StringRef getPrivateGlobalPrefix() const { return PrivateGlobalPrefix; }
diff --git a/llvm/lib/MC/MCAsmStreamer.cpp b/llvm/lib/MC/MCAsmStreamer.cpp
index da0d99e70d9ea..4380f74318e7b 100644
--- a/llvm/lib/MC/MCAsmStreamer.cpp
+++ b/llvm/lib/MC/MCAsmStreamer.cpp
@@ -695,9 +695,11 @@ void MCAsmStreamer::emitAssignment(MCSymbol *Symbol, const MCExpr *Value) {
     if (E->inlineAssignedExpr())
       EmitSet = false;
   if (EmitSet) {
-    OS << ".set ";
+    bool UseSet = MAI->usesSetToEquateSymbol();
+    if (UseSet)
+      OS << ".set ";
     Symbol->print(OS, MAI);
-    OS << ", ";
+    OS << (UseSet ? ", " : " = ");
     Value->print(OS, MAI);
 
     EmitEOL();
diff --git a/llvm/lib/Target/AMDGPU/MCTargetDesc/AMDGPUMCAsmInfo.cpp b/llvm/lib/Target/AMDGPU/MCTargetDesc/AMDGPUMCAsmInfo.cpp
index 6f1d89e500ed3..fcf134aa8658f 100644
--- a/llvm/lib/Target/AMDGPU/MCTargetDesc/AMDGPUMCAsmInfo.cpp
+++ b/llvm/lib/Target/AMDGPU/MCTargetDesc/AMDGPUMCAsmInfo.cpp
@@ -42,6 +42,7 @@ AMDGPUMCAsmInfo::AMDGPUMCAsmInfo(const Triple &TT,
   CommentString = ";";
   InlineAsmStart = ";#ASMSTART";
   InlineAsmEnd = ";#ASMEND";
+  UsesSetToEquateSymbol = true;
 
   //===--- Data Emission Directives -------------------------------------===//
   UsesELFSectionDirectiveForBSS = true;
diff --git a/llvm/lib/Target/Hexagon/MCTargetDesc/HexagonMCAsmInfo.cpp b/llvm/lib/Target/Hexagon/MCTargetDesc/HexagonMCAsmInfo.cpp
index 7675b05f106a0..ba8faaeb74a07 100644
--- a/llvm/lib/Target/Hexagon/MCTargetDesc/HexagonMCAsmInfo.cpp
+++ b/llvm/lib/Target/Hexagon/MCTargetDesc/HexagonMCAsmInfo.cpp
@@ -38,6 +38,7 @@ HexagonMCAsmInfo::HexagonMCAsmInfo(const Triple &TT) {
   LCOMMDirectiveAlignmentType = LCOMM::ByteAlignment;
   InlineAsmStart = "# InlineAsm Start";
   InlineAsmEnd = "# InlineAsm End";
+  UsesSetToEquateSymbol = true;
   ZeroDirective = "\t.space\t";
   AscizDirective = "\t.string\t";
 
diff --git a/llvm/lib/Target/PowerPC/MCTargetDesc/PPCMCAsmInfo.cpp b/llvm/lib/Target/PowerPC/MCTargetDesc/PPCMCAsmInfo.cpp
index 160ee07fad5cc..b5be23c5a96ad 100644
--- a/llvm/lib/Target/PowerPC/MCTargetDesc/PPCMCAsmInfo.cpp
+++ b/llvm/lib/Target/PowerPC/MCTargetDesc/PPCMCAsmInfo.cpp
@@ -155,5 +155,7 @@ PPCXCOFFMCAsmInfo::PPCXCOFFMCAsmInfo(bool Is64Bit, const Triple &T) {
   // Support $ as PC in inline asm
   DollarIsPC = true;
 
+  UsesSetToEquateSymbol = true;
+
   initializeVariantKinds(variantKindDescs);
 }
diff --git a/llvm/lib/Target/SystemZ/MCTargetDesc/SystemZMCAsmInfo.cpp b/llvm/lib/Target/SystemZ/MCTargetDesc/SystemZMCAsmInfo.cpp
index 27272cdbbd230..e9d387399bf30 100644
--- a/llvm/lib/Target/SystemZ/MCTargetDesc/SystemZMCAsmInfo.cpp
+++ b/llvm/lib/Target/SystemZ/MCTargetDesc/SystemZMCAsmInfo.cpp
@@ -49,6 +49,7 @@ SystemZMCAsmInfoGOFF::SystemZMCAsmInfoGOFF(const Triple &TT) {
   CalleeSaveStackSlotSize = 8;
   CodePointerSize = 8;
   CommentString = "*";
+  UsesSetToEquateSymbol = true;
   ExceptionsType = ExceptionHandling::ZOS;
   IsHLASM = true;
   IsLittleEndian = false;
diff --git a/llvm/test/CodeGen/AArch64/arm64ec-alias.ll b/llvm/test/CodeGen/AArch64/arm64ec-alias.ll
index 03cc873136940..18023a95a5d20 100644
--- a/llvm/test/CodeGen/AArch64/arm64ec-alias.ll
+++ b/llvm/test/CodeGen/AArch64/arm64ec-alias.ll
@@ -13,30 +13,30 @@ define dso_local void @patchable_func() hybrid_patchable {
 @patchable_alias = alias void (), ptr @patchable_func
 
 ; CHECK:              .weak_anti_dep  func_alias
-; CHECK-NEXT: .set func_alias, "#func_alias"
+; CHECK-NEXT: func_alias = "#func_alias"
 ; CHECK-NEXT:         .weak_anti_dep  func_alias2
-; CHECK-NEXT: .set func_alias2, "#func_alias2"
+; CHECK-NEXT: func_alias2 = "#func_alias2"
 ; CHECK-NEXT:         .weak_anti_dep  func
-; CHECK-NEXT: .set func, "#func"
+; CHECK-NEXT: func = "#func"
 ; CHECK:              .weak_anti_dep  patchable_alias
-; CHECK-NEXT: .set patchable_alias, "#patchable_alias"
+; CHECK-NEXT: patchable_alias = "#patchable_alias"
 
 ; CHECK:              .globl  "#func_alias"
 ; CHECK-NEXT:         .def    "#func_alias";
 ; CHECK-NEXT:         .scl    2;
 ; CHECK-NEXT:         .type   32;
 ; CHECK-NEXT:         .endef
-; CHECK-NEXT: .set "#func_alias", "#func"
+; CHECK-NEXT: "#func_alias" = "#func"
 ; CHECK-NEXT:         .globl  "#func_alias2"
 ; CHECK-NEXT:         .def    "#func_alias2";
 ; CHECK-NEXT:         .scl    2;
 ; CHECK-NEXT:         .type   32;
 ; CHECK-NEXT:         .endef
-; CHECK-NEXT: .set "#func_alias2", "#func_alias"
+; CHECK-NEXT: "#func_alias2" = "#func_alias"
 
 ; CHECK:              .globl  "#patchable_alias"
 ; CHECK-NEXT:         .def    "#patchable_alias";
 ; CHECK-NEXT:         .scl    2;
 ; CHECK-NEXT:         .type   32;
 ; CHECK-NEXT:         .endef
-; CHECK-NEXT: .set "#patchable_alias", "#patchable_func"
+; CHECK-NEXT: "#patchable_alias" = "#patchable_func"
diff --git a/llvm/test/CodeGen/AArch64/arm64ec-hybrid-patchable.ll b/llvm/test/CodeGen/AArch64/arm64ec-hybrid-patchable.ll
index f964484c0c2d4..7c77832a9d9a5 100644
--- a/llvm/test/CodeGen/AArch64/arm64ec-hybrid-patchable.ll
+++ b/llvm/test/CodeGen/AArch64/arm64ec-hybrid-patchable.ll
@@ -76,7 +76,7 @@ define dso_local void @caller() nounwind {
 ; CHECK-NEXT:      .p2align        2
 ; CHECK-NEXT:  "#caller":                              // @"#caller"
 ; CHECK-NEXT:      .weak_anti_dep  caller
-; CHECK-NEXT:  .set caller, "#caller"{{$}}
+; CHECK-NEXT:  caller = "#caller"{{$}}
 ; CHECK-NEXT:  // %bb.0:
 ; CHECK-NEXT:      str     x30, [sp, #-16]!                // 8-byte Folded Spill
 ; CHECK-NEXT:      bl      "#func"
@@ -253,13 +253,13 @@ define dso_local void @caller() nounwind {
 ; CHECK-NEXT:      .type   32;
 ; CHECK-NEXT:      .endef
 ; CHECK-NEXT:      .weak  func
-; CHECK-NEXT:  .set func, "EXP+#func"{{$}}
+; CHECK-NEXT:  func = "EXP+#func"{{$}}
 ; CHECK-NEXT:      .weak  "#func"
 ; CHECK-NEXT:      .def    "#func";
 ; CHECK-NEXT:      .scl    2;
 ; CHECK-NEXT:      .type   32;
 ; CHECK-NEXT:      .endef
-; CHECK-NEXT:  .set "#func", "#func$hybpatch_thunk"{{$}}
+; CHECK-NEXT:  "#func" = "#func$hybpatch_thunk"{{$}}
 ; CHECK-NEXT:      .def    "EXP+#has_varargs";
 ; CHECK-NEXT:      .scl    2;
 ; CHECK-NEXT:      .type   32;
@@ -269,13 +269,13 @@ define dso_local void @caller() nounwind {
 ; CHECK-NEXT:      .type   32;
 ; CHECK-NEXT:      .endef
 ; CHECK-NEXT:      .weak   has_varargs
-; CHECK-NEXT:  .set has_varargs, "EXP+#has_varargs"
+; CHECK-NEXT:  has_varargs = "EXP+#has_varargs"
 ; CHECK-NEXT:      .weak   "#has_varargs"
 ; CHECK-NEXT:      .def    "#has_varargs";
 ; CHECK-NEXT:      .scl    2;
 ; CHECK-NEXT:      .type   32;
 ; CHECK-NEXT:      .endef
-; CHECK-NEXT:  .set "#has_varargs", "#has_varargs$hybpatch_thunk"
+; CHECK-NEXT:  "#has_varargs" = "#has_varargs$hybpatch_thunk"
 ; CHECK-NEXT:      .def    "EXP+#has_sret";
 ; CHECK-NEXT:      .scl    2;
 ; CHECK-NEXT:      .type   32;
@@ -285,13 +285,13 @@ define dso_local void @caller() nounwind {
 ; CHECK-NEXT:      .type   32;
 ; CHECK-NEXT:      .endef
 ; CHECK-NEXT:      .weak   has_sret
-; CHECK-NEXT:  .set has_sret, "EXP+#has_sret"
+; CHECK-NEXT:  has_sret = "EXP+#has_sret"
 ; CHECK-NEXT:      .weak   "#has_sret"
 ; CHECK-NEXT:      .def    "#has_sret";
 ; CHECK-NEXT:      .scl    2;
 ; CHECK-NEXT:      .type   32;
 ; CHECK-NEXT:      .endef
-; CHECK-NEXT:  .set "#has_sret", "#has_sret$hybpatch_thunk"
+; CHECK-NEXT:  "#has_sret" = "#has_sret$hybpatch_thunk"
 ; CHECK-NEXT:      .def    "EXP+#exp";
 ; CHECK-NEXT:      .scl    2;
 ; CHECK-NEXT:      .type   32;
@@ -301,13 +301,13 @@ define dso_local void @caller() nounwind {
 ; CHECK-NEXT:      .type   32;
 ; CHECK-NEXT:      .endef
 ; CHECK-NEXT:      .weak   exp
-; CHECK-NEXT:  .set exp, "EXP+#exp"
+; CHECK-NEXT:  exp = "EXP+#exp"
 ; CHECK-NEXT:      .weak   "#exp"
 ; CHECK-NEXT:      .def    "#exp";
 ; CHECK-NEXT:      .scl    2;
 ; CHECK-NEXT:      .type   32;
 ; CHECK-NEXT:      .endef
-; CHECK-NEXT:  .set "#exp", "#exp$hybpatch_thunk"
+; CHECK-NEXT:  "#exp" = "#exp$hybpatch_thunk"
 
 ; SYM:      [53](sec 15)(fl 0x00)(ty  20)(scl   2) (nx 0) 0x00000000 #func$hybpatch_thunk
 ; SYM:      [58](sec 16)(fl 0x00)(ty  20)(scl   2) (nx 0) 0x00000000 #has_varargs$hybpatch_thunk
diff --git a/llvm/test/CodeGen/AArch64/arm64ec-symbols.ll b/llvm/test/CodeGen/AArch64/arm64ec-symbols.ll
index b79dd7d61dd60..b44f39ad7b735 100644
--- a/llvm/test/CodeGen/AArch64/arm64ec-symbols.ll
+++ b/llvm/test/CodeGen/AArch64/arm64ec-symbols.ll
@@ -10,12 +10,12 @@ define void @caller() nounwind {
 }
 
 ; CHECK:      .weak_anti_dep  caller
-; CHECK-NEXT: .set caller, "#caller"{{$}}
+; CHECK-NEXT: caller = "#caller"{{$}}
 
 ; CHECK:      .weak_anti_dep  func
-; CHECK-NEXT: .set func, "#func"{{$}}
+; CHECK-NEXT: func = "#func"{{$}}
 ; CHECK-NEXT: .weak_anti_dep  "#func"
-; CHECK-NEXT: .set "#func", "#func$exit_thunk"{{$}}
+; CHECK-NEXT: "#func" = "#func$exit_thunk"{{$}}
 
 ; SYM:       [ 8](sec  4)(fl 0x00)(ty  20)(scl   2) (nx 0) 0x00000000 #caller
 ; SYM:       [21](sec  7)(fl 0x00)(ty  20)(scl   2) (nx 0) 0x00000000 #func$exit_thunk
diff --git a/llvm/test/CodeGen/AArch64/arm64ec-varargs.ll b/llvm/test/CodeGen/AArch64/arm64ec-varargs.ll
index 5fab5738078dc..389969bebaea4 100644
--- a/llvm/test/CodeGen/AArch64/arm64ec-varargs.ll
+++ b/llvm/test/CodeGen/AArch64/arm64ec-varargs.ll
@@ -45,9 +45,9 @@ define void @varargs_caller() nounwind {
 ; CHECK-NEXT:    stp x9, x8, [sp]
 ; CHECK-NEXT:    str xzr, [sp, #16]
 ; CHECK-NEXT:    .weak_anti_dep varargs_callee
-; CHECK-NEXT:  .set varargs_callee, "#varargs_callee"
+; CHECK-NEXT:  varargs_callee = "#varargs_callee"
 ; CHECK-NEXT:    .weak_anti_dep "#varargs_callee"
-; CHECK-NEXT:  .set "#varargs_callee", varargs_callee
+; CHECK-NEXT:  "#varargs_callee" = varargs_callee
 ; CHECK-NEXT:    bl "#varargs_callee"
 ; CHECK-NEXT:    ldr x30, [sp, #32] // 8-byte Folded Reload
 ; CHECK-NEXT:    add sp, sp, #48
@@ -86,9 +86,9 @@ define void @varargs_many_argscalleer() nounwind {
 ; CHECK-NEXT:    stp x9, x8, [sp]
 ; CHECK-NEXT:    stp q0, q0, [sp, #16]
 ; CHECK-NEXT:    .weak_anti_dep varargs_many_argscallee
-; CHECK-NEXT:  .set varargs_many_argscallee, "#varargs_many_argscallee"
+; CHECK-NEXT:  varargs_many_argscallee = "#varargs_many_argscallee"
 ; CHECK-NEXT:    .weak_anti_dep "#varargs_many_argscallee"
-; CHECK-NEXT:  .set "#varargs_many_argscallee", varargs_many_argscallee
+; CHECK-NEXT:  "#varargs_many_argscallee" = varargs_many_argscallee
 ; CHECK-NEXT:    bl "#varargs_many_argscallee"
 ; CHECK-NEXT:    ldr x30, [sp, #48] // 8-byte Folded Reload
 ; CHECK-NEXT:    add sp, sp, #64
@@ -116,9 +116,9 @@ define void @varargs_caller_tail() nounwind {
 ; CHECK-NEXT:    stp x9, x8, [sp]
 ; CHECK-NEXT:    str xzr, [sp, #16]
 ; CHECK-NEXT:    .weak_anti_dep varargs_callee
-; CHECK-NEXT:  .set varargs_callee, "#varargs_callee"
+; CHECK-NEXT:  varargs_callee = "#varargs_callee"
 ; CHECK-NEXT:    .weak_anti_dep "#varargs_callee"
-; CHECK-NEXT:  .set "#varargs_callee", varargs_callee
+; CHECK-NEXT:  "#varargs_callee" = varargs_callee
 ; CHECK-NEXT:    bl "#varargs_callee"
 ; CHECK-NEXT:    ldr x30, [sp, #32] // 8-byte Folded Reload
 ; CHECK-NEXT:    add x4, sp, #48
@@ -129,9 +129,9 @@ define void @varargs_caller_tail() nounwind {
 ; CHECK-NEXT:    mov x5, xzr
 ; CHECK-NEXT:    add sp, sp, #48
 ; CHECK-NEXT:    .weak_anti_dep varargs_callee
-; CHECK-NEXT:  .set varargs_callee, "#varargs_callee"
+; CHECK-NEXT:  varargs_callee = "#varargs_callee"
 ; CHECK-NEXT:    .weak_anti_dep "#varargs_callee"
-; CHECK-NEXT:  .set "#varargs_callee", varargs_callee
+; CHECK-NEXT:  "#varargs_callee" = varargs_callee
 ; CHECK-NEXT:    b "#varargs_callee"
   call void (double, ...) @varargs_callee(double 1.0, i32 2, double 3.0, i32 4, double 5.0, <2 x double> <double 0.0, double 0.0>)
   tail call void (double, ...) @varargs_callee(double 1.0, i32 4, i32 3, i32 2)
diff --git a/llvm/test/CodeGen/AArch64/ehcontguard.ll b/llvm/test/CodeGen/AArch64/ehcontguard.ll
index eecff391d0f8c..cb603a482d228 100644
--- a/llvm/test/CodeGen/AArch64/ehcontguard.ll
+++ b/llvm/test/CodeGen/AArch64/ehcontguard.ll
@@ -1,7 +1,7 @@
 ; RUN: llc < %s -mtriple=aarch64-windows | FileCheck %s
 ; EHCont Guard is currently only available on Windows
 
-; CHECK: .set "@feat.00", 16384
+; CHECK: "@feat.00" = 16384
 
 ; CHECK: .section .gehcont$y
 
diff --git a/llvm/test/CodeGen/AArch64/global-merge-1.ll b/llvm/test/CodeGen/AArch64/global-merge-1.ll
index cc17e344c211a..626310fc4ec25 100644
--- a/llvm/test/CodeGen/AArch64/global-merge-1.ll
+++ b/llvm/test/CodeGen/AArch64/global-merge-1.ll
@@ -23,9 +23,9 @@ define void @f1(i32 %a1, i32 %a2) {
 ;CHECK:	.type	.L_MergedGlobals, at object  // @_MergedGlobals
 ;CHECK:	.local	.L_MergedGlobals
 ;CHECK:	.comm	.L_MergedGlobals,8,4
-;CHECK: .set m, .L_MergedGlobals
-;CHECK: .set n, .L_MergedGlobals+4
+;CHECK: m = .L_MergedGlobals
+;CHECK: n = .L_MergedGlobals+4
 
 ;CHECK-APPLE-IOS: .zerofill __DATA,__bss,__MergedGlobals,8,2 ; @_MergedGlobals
-;CHECK-APPLE-IOS-NOT: .set _m, l__MergedGlobals
-;CHECK-APPLE-IOS-NOT: .set _n, l__MergedGlobals+4
+;CHECK-APPLE-IOS-NOT: _m = l__MergedGlobals
+;CHECK-APPLE-IOS-NOT: _n = l__MergedGlobals+4
diff --git a/llvm/test/CodeGen/AArch64/global-merge-2.ll b/llvm/test/CodeGen/AArch64/global-merge-2.ll
index 85d814c3177b3..1b5333b907d27 100644
--- a/llvm/test/CodeGen/AArch64/global-merge-2.ll
+++ b/llvm/test/CodeGen/AArch64/global-merge-2.ll
@@ -32,21 +32,21 @@ define dso_local void @g1(i32 %a1, i32 %a2) {
 ;CHECK:	.comm	.L_MergedGlobals,12,4
 
 ;CHECK:	.globl	x
-;CHECK: .set x, .L_MergedGlobals
+;CHECK: x = .L_MergedGlobals
 ;CHECK: .size x, 4
 ;CHECK:	.globl	y
-;CHECK: .set y, .L_MergedGlobals+4
+;CHECK: y = .L_MergedGlobals+4
 ;CHECK: .size y, 4
 ;CHECK:	.globl	z
-;CHECK: .set z, .L_MergedGlobals+8
+;CHECK: z = .L_MergedGlobals+8
 ;CHECK: .size z, 4
 
 ;CHECK-APPLE-IOS: .zerofill __DATA,__common,__MergedGlobals_x,12,2
 
 ;CHECK-APPLE-IOS: .globl	_x
-;CHECK-APPLE-IOS: .set {{.*}}, __MergedGlobals_x
+;CHECK-APPLE-IOS: {{.*}} = __MergedGlobals_x
 ;CHECK-APPLE-IOS: .globl	_y
-;CHECK-APPLE-IOS: .set _y, __MergedGlobals_x+4
+;CHECK-APPLE-IOS: _y = __MergedGlobals_x+4
 ;CHECK-APPLE-IOS: .globl	_z
-;CHECK-APPLE-IOS: .set _z, __MergedGlobals_x+8
+;CHECK-APPLE-IOS: _z = __MergedGlobals_x+8
 ;CHECK-APPLE-IOS: .subsections_via_symbols
diff --git a/llvm/test/CodeGen/AArch64/global-merge-3.ll b/llvm/test/CodeGen/AArch64/global-merge-3.ll
index b3f58887139f7..2a0ae12274556 100644
--- a/llvm/test/CodeGen/AArch64/global-merge-3.ll
+++ b/llvm/test/CodeGen/AArch64/global-merge-3.ll
@@ -40,14 +40,14 @@ define dso_local void @f1(i32 %a1, i32 %a2, i32 %a3) {
 
 ;CHECK-APPLE-IOS: .globl  __MergedGlobals_x
 ;CHECK-APPLE-IOS: .zerofill __DATA,__common,__MergedGlobals_x,800,2
-;CHECK-APPLE-IOS: .set _x, __MergedGlobals_x
-;CHECK-APPLE-IOS: .set _y, __MergedGlobals_x+400
+;CHECK-APPLE-IOS: _x = __MergedGlobals_x
+;CHECK-APPLE-IOS: _y = __MergedGlobals_x+400
 
 ;CHECK: .type   .L_MergedGlobals, at object // @_MergedGlobals
 ;CHECK: .local  .L_MergedGlobals
 ;CHECK: .comm   .L_MergedGlobals,800,4
 ;CHECK: globl  x
-;CHECK: .set x, .L_MergedGlobals
+;CHECK: x = .L_MergedGlobals
 ;CHECK: globl  y
-;CHECK: .set y, .L_MergedGlobals+400
-;CHECK-NOT: .set z, .L_MergedGlobals
+;CHECK: y = .L_MergedGlobals+400
+;CHECK-NOT: z = .L_MergedGlobals
diff --git a/llvm/test/CodeGen/AArch64/global-merge-hidden-minsize.ll b/llvm/test/CodeGen/AArch64/global-merge-hidden-minsize.ll
index 9c694fc4d289c..5292aa91fc381 100644
--- a/llvm/test/CodeGen/AArch64/global-merge-hidden-minsize.ll
+++ b/llvm/test/CodeGen/AArch64/global-merge-hidden-minsize.ll
@@ -16,10 +16,10 @@ attributes #0 = { minsize optsize }
 
 ; CHECK: .globl x
 ; CHECK: .hidden x
-; CHECK: .set x, .L_MergedGlobals
+; CHECK: x = .L_MergedGlobals
 ; CHECK: .size x, 4
 
 ; CHECK: .globl y
 ; CHECK: .hidden y
-; CHECK: .set y, .L_MergedGlobals+4
+; CHECK: y = .L_MergedGlobals+4
 ; CHECK: .size y, 4
diff --git a/llvm/test/CodeGen/AArch64/ifunc-asm.ll b/llvm/test/CodeGen/AArch64/ifunc-asm.ll
index 57fc2f0c9d7f5..7aad6cce09cf2 100644
--- a/llvm/test/CodeGen/AArch64/ifunc-asm.ll
+++ b/llvm/test/CodeGen/AArch64/ifunc-asm.ll
@@ -16,7 +16,7 @@ entry:
 @global_ifunc = ifunc i32 (i32), ptr @the_resolver
 ; ELF:             .globl global_ifunc
 ; ELF-NEXT:        .type global_ifunc, at gnu_indirect_function
-; ELF-NEXT:        .set global_ifunc, the_resolver
+; ELF-NEXT:        global_ifunc = the_resolver
 
 ; MACHO:           .section __DATA,__data
 ; MACHO-NEXT:      .p2align 3, 0x0
diff --git a/llvm/test/CodeGen/AArch64/seh-finally.ll b/llvm/test/CodeGen/AArch64/seh-finally.ll
index 04a30800d9294..fd6b3fd0bc1fc 100644
--- a/llvm/test/CodeGen/AArch64/seh-finally.ll
+++ b/llvm/test/CodeGen/AArch64/seh-finally.ll
@@ -38,7 +38,7 @@ entry:
 ; CHECK: add     x29, sp, #16
 ; CHECK: mov     x0, #-2
 ; CHECK: stur    x0, [x29, #16]
-; CHECK: .set .Lsimple_seh$frame_escape_0, -8
+; CHECK: .Lsimple_seh$frame_escape_0 = -8
 ; CHECK: ldur    w0, [x29, #-8]
 ; CHECK: bl      foo
 
@@ -89,7 +89,7 @@ entry:
 ; CHECK: mov     x19, sp
 ; CHECK: mov     x0, #-2
 ; CHECK: stur    x0, [x29, #24]
-; CHECK: .set .Lstack_realign$frame_escape_0, 0
+; CHECK: .Lstack_realign$frame_escape_0 = 0
 ; CHECK: ldr     w0, [x19]
 ; CHECK: bl      foo
 
@@ -137,7 +137,7 @@ entry:
 ; CHECK: add     x29, sp, #32
 ; CHECK: mov     x1, #-2
 ; CHECK: stur    x1, [x29, #16]
-; CHECK: .set .Lvla_present$frame_escape_0, -4
+; CHECK: .Lvla_present$frame_escape_0 = -4
 ; CHECK: stur    w0, [x29, #-4]
 ; CHECK: ldur    w8, [x29, #-4]
 ; CHECK: mov     x9, sp
@@ -204,7 +204,7 @@ entry:
 ; CHECK: mov     x19, sp
 ; CHECK: mov     x1, #-2
 ; CHECK: stur    x1, [x29, #24]
-; CHECK: .set .Lvla_and_realign$frame_escape_0, 32
+; CHECK: .Lvla_and_realign$frame_escape_0 = 32
 ; CHECK: str     w0, [x29, #36]
 ; CHECK: ldr     w8, [x29, #36]
 ; CHECK: mov     x9, sp
diff --git a/llvm/test/CodeGen/AArch64/stackguard-internal.ll b/llvm/test/CodeGen/AArch64/stackguard-internal.ll
index a70c8874edbac..7b32e8c0caab5 100644
--- a/llvm/test/CodeGen/AArch64/stackguard-internal.ll
+++ b/llvm/test/CodeGen/AArch64/stackguard-internal.ll
@@ -6,7 +6,7 @@ target triple = "aarch64-linux-gnu"
 ; is an alias.  (The alias is created by GlobalMerge.)
 ; CHECK: adrp {{.*}}, __stack_chk_guard
 ; CHECK: ldr {{.*}}, [{{.*}}, :lo12:__stack_chk_guard]
-; CHECK: .set __stack_chk_guard, .L_MergedGlobals+4
+; CHECK: __stack_chk_guard = .L_MergedGlobals+4
 
 @__stack_chk_guard = internal global [8 x i32] zeroinitializer, align 4
 @x = internal global i32 0, align 4
diff --git a/llvm/test/CodeGen/ARM/alias_store.ll b/llvm/test/CodeGen/ARM/alias_store.ll
index c6612334eaf1b..60aa58d37499c 100644
--- a/llvm/test/CodeGen/ARM/alias_store.ll
+++ b/llvm/test/CodeGen/ARM/alias_store.ll
@@ -13,4 +13,4 @@ entry:
 ; CHECK: ldr r{{.*}}, [[L:.*]]
 ; CHECK: [[L]]:
 ; CHECK-NEXT: .long XA
-; CHECK: .set XA, X+1
+; CHECK: XA = X+1
diff --git a/llvm/test/CodeGen/ARM/aliases.ll b/llvm/test/CodeGen/ARM/aliases.ll
index 6075ad813e990..8d9f938155d15 100644
--- a/llvm/test/CodeGen/ARM/aliases.ll
+++ b/llvm/test/CodeGen/ARM/aliases.ll
@@ -6,30 +6,30 @@
 ; CHECK: .size .Lstructvar, 8
 
 ; CHECK: .globl	foo1
-; CHECK: .set foo1, bar
+; CHECK: foo1 = bar
 ; CHECK-NOT: .size foo1
 
 ; CHECK: .globl	foo2
-; CHECK: .set foo2, bar
+; CHECK: foo2 = bar
 ; CHECK-NOT: .size foo2
 
 ; CHECK: .weak	bar_f
-; CHECK: .set bar_f, foo_f
+; CHECK: bar_f = foo_f
 ; CHECK-NOT: .size bar_f
 
-; CHECK: .set bar_i, bar
+; CHECK: bar_i = bar
 ; CHECK-NOT: .size bar_i
 
 ; CHECK: .globl	A
-; CHECK: .set A, bar
+; CHECK: A = bar
 ; CHECK-NOT: .size A
 
 ; CHECK: ....
[truncated]

``````````

</details>


https://github.com/llvm/llvm-project/pull/142289


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