[llvm] e85667a - [PowerPC] Add non-constant fcopysign f128 test coverage

Simon Pilgrim via llvm-commits llvm-commits at lists.llvm.org
Fri Dec 3 04:04:14 PST 2021 

Author: Simon Pilgrim
Date: 2021-12-03T12:04:06Z
New Revision: e85667a2fbaf916c49000144b413caf0d26b0365

URL: https://github.com/llvm/llvm-project/commit/e85667a2fbaf916c49000144b413caf0d26b0365
DIFF: https://github.com/llvm/llvm-project/commit/e85667a2fbaf916c49000144b413caf0d26b0365.diff

LOG: [PowerPC] Add non-constant fcopysign f128 test coverage

As discussed on D114589 as the constant case gets affected by SimplifyDemandedBits a lot - the non-constant case currently falls back to copysignl libcalls

Added: 
    

Modified: 
    llvm/test/CodeGen/PowerPC/fp128-bitcast-after-operation.ll

Removed: 
    


################################################################################
diff  --git a/llvm/test/CodeGen/PowerPC/fp128-bitcast-after-operation.ll b/llvm/test/CodeGen/PowerPC/fp128-bitcast-after-operation.ll
index 3e888b616f2af..7eaf3e4cea392 100644
--- a/llvm/test/CodeGen/PowerPC/fp128-bitcast-after-operation.ll
+++ b/llvm/test/CodeGen/PowerPC/fp128-bitcast-after-operation.ll
@@ -1,8 +1,8 @@
 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
-; RUN: llc -verify-machineinstrs -mtriple=powerpc64le-unknown-linux-gnu -mcpu=pwr8 < %s | FileCheck %s -check-prefix=PPC64-P8
-; RUN: llc -verify-machineinstrs -mtriple=powerpc64le-unknown-linux-gnu -mcpu=pwr7 < %s | FileCheck %s -check-prefix=PPC64
-; RUN: llc -verify-machineinstrs -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr8 < %s | FileCheck %s -check-prefix=PPC64-P8
-; RUN: llc -verify-machineinstrs -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7 < %s | FileCheck %s -check-prefix=PPC64
+; RUN: llc -verify-machineinstrs -mtriple=powerpc64le-unknown-linux-gnu -mcpu=pwr8 < %s | FileCheck %s -check-prefixes=PPC64-P8,PPC64-P8-LE
+; RUN: llc -verify-machineinstrs -mtriple=powerpc64le-unknown-linux-gnu -mcpu=pwr7 < %s | FileCheck %s -check-prefixes=PPC64,PPC64-LE
+; RUN: llc -verify-machineinstrs -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr8 < %s | FileCheck %s -check-prefixes=PPC64-P8,PPC64-P8-BE
+; RUN: llc -verify-machineinstrs -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7 < %s | FileCheck %s -check-prefixes=PPC64,PPC64-BE
 ; RUN: llc -verify-machineinstrs -mtriple=powerpc-unknown-linux-gnu < %s | FileCheck %s -check-prefix=PPC32
 
 define i128 @test_abs(ppc_fp128 %x) nounwind  {
@@ -88,8 +88,115 @@ entry:
 	ret i128 %1
 }
 
-define i128 @test_copysign(ppc_fp128 %x) nounwind  {
-; PPC64-P8-LABEL: test_copysign:
+define i128 @test_copysign(ppc_fp128 %x, ppc_fp128 %y) nounwind  {
+; PPC64-P8-LE-LABEL: test_copysign:
+; PPC64-P8-LE:       # %bb.0: # %entry
+; PPC64-P8-LE-NEXT:    mflr 0
+; PPC64-P8-LE-NEXT:    std 0, 16(1)
+; PPC64-P8-LE-NEXT:    stdu 1, -32(1)
+; PPC64-P8-LE-NEXT:    bl copysignl
+; PPC64-P8-LE-NEXT:    nop
+; PPC64-P8-LE-NEXT:    mffprd 3, 1
+; PPC64-P8-LE-NEXT:    mffprd 4, 2
+; PPC64-P8-LE-NEXT:    addi 1, 1, 32
+; PPC64-P8-LE-NEXT:    ld 0, 16(1)
+; PPC64-P8-LE-NEXT:    mtlr 0
+; PPC64-P8-LE-NEXT:    blr
+;
+; PPC64-LE-LABEL: test_copysign:
+; PPC64-LE:       # %bb.0: # %entry
+; PPC64-LE-NEXT:    mflr 0
+; PPC64-LE-NEXT:    std 0, 16(1)
+; PPC64-LE-NEXT:    stdu 1, -48(1)
+; PPC64-LE-NEXT:    bl copysignl
+; PPC64-LE-NEXT:    nop
+; PPC64-LE-NEXT:    stfd 1, 32(1)
+; PPC64-LE-NEXT:    stfd 2, 40(1)
+; PPC64-LE-NEXT:    ld 3, 32(1)
+; PPC64-LE-NEXT:    ld 4, 40(1)
+; PPC64-LE-NEXT:    addi 1, 1, 48
+; PPC64-LE-NEXT:    ld 0, 16(1)
+; PPC64-LE-NEXT:    mtlr 0
+; PPC64-LE-NEXT:    blr
+;
+; PPC64-P8-BE-LABEL: test_copysign:
+; PPC64-P8-BE:       # %bb.0: # %entry
+; PPC64-P8-BE-NEXT:    mflr 0
+; PPC64-P8-BE-NEXT:    std 0, 16(1)
+; PPC64-P8-BE-NEXT:    stdu 1, -112(1)
+; PPC64-P8-BE-NEXT:    bl copysignl
+; PPC64-P8-BE-NEXT:    nop
+; PPC64-P8-BE-NEXT:    mffprd 3, 1
+; PPC64-P8-BE-NEXT:    mffprd 4, 2
+; PPC64-P8-BE-NEXT:    addi 1, 1, 112
+; PPC64-P8-BE-NEXT:    ld 0, 16(1)
+; PPC64-P8-BE-NEXT:    mtlr 0
+; PPC64-P8-BE-NEXT:    blr
+;
+; PPC64-BE-LABEL: test_copysign:
+; PPC64-BE:       # %bb.0: # %entry
+; PPC64-BE-NEXT:    mflr 0
+; PPC64-BE-NEXT:    std 0, 16(1)
+; PPC64-BE-NEXT:    stdu 1, -128(1)
+; PPC64-BE-NEXT:    bl copysignl
+; PPC64-BE-NEXT:    nop
+; PPC64-BE-NEXT:    stfd 1, 112(1)
+; PPC64-BE-NEXT:    stfd 2, 120(1)
+; PPC64-BE-NEXT:    ld 3, 112(1)
+; PPC64-BE-NEXT:    ld 4, 120(1)
+; PPC64-BE-NEXT:    addi 1, 1, 128
+; PPC64-BE-NEXT:    ld 0, 16(1)
+; PPC64-BE-NEXT:    mtlr 0
+; PPC64-BE-NEXT:    blr
+;
+; PPC32-LABEL: test_copysign:
+; PPC32:       # %bb.0: # %entry
+; PPC32-NEXT:    mflr 0
+; PPC32-NEXT:    stw 0, 4(1)
+; PPC32-NEXT:    stwu 1, -96(1)
+; PPC32-NEXT:    stfd 1, 40(1)
+; PPC32-NEXT:    lwz 3, 44(1)
+; PPC32-NEXT:    stfd 2, 32(1)
+; PPC32-NEXT:    stw 3, 60(1)
+; PPC32-NEXT:    lwz 3, 40(1)
+; PPC32-NEXT:    stfd 3, 72(1)
+; PPC32-NEXT:    stw 3, 56(1)
+; PPC32-NEXT:    lwz 3, 36(1)
+; PPC32-NEXT:    stfd 4, 64(1)
+; PPC32-NEXT:    stw 3, 52(1)
+; PPC32-NEXT:    lwz 3, 32(1)
+; PPC32-NEXT:    lfd 1, 56(1)
+; PPC32-NEXT:    stw 3, 48(1)
+; PPC32-NEXT:    lwz 3, 76(1)
+; PPC32-NEXT:    lfd 2, 48(1)
+; PPC32-NEXT:    stw 3, 92(1)
+; PPC32-NEXT:    lwz 3, 72(1)
+; PPC32-NEXT:    stw 3, 88(1)
+; PPC32-NEXT:    lwz 3, 68(1)
+; PPC32-NEXT:    lfd 3, 88(1)
+; PPC32-NEXT:    stw 3, 84(1)
+; PPC32-NEXT:    lwz 3, 64(1)
+; PPC32-NEXT:    stw 3, 80(1)
+; PPC32-NEXT:    lfd 4, 80(1)
+; PPC32-NEXT:    bl copysignl
+; PPC32-NEXT:    stfd 1, 16(1)
+; PPC32-NEXT:    stfd 2, 24(1)
+; PPC32-NEXT:    lwz 3, 16(1)
+; PPC32-NEXT:    lwz 4, 20(1)
+; PPC32-NEXT:    lwz 5, 24(1)
+; PPC32-NEXT:    lwz 6, 28(1)
+; PPC32-NEXT:    lwz 0, 100(1)
+; PPC32-NEXT:    addi 1, 1, 96
+; PPC32-NEXT:    mtlr 0
+; PPC32-NEXT:    blr
+entry:
+	%0 = tail call ppc_fp128 @llvm.copysign.ppcf128(ppc_fp128 %x, ppc_fp128 %y)
+	%1 = bitcast ppc_fp128 %0 to i128
+	ret i128 %1
+}
+
+define i128 @test_copysign_const(ppc_fp128 %x) nounwind  {
+; PPC64-P8-LABEL: test_copysign_const:
 ; PPC64-P8:       # %bb.0: # %entry
 ; PPC64-P8-NEXT:    mffprd 3, 1
 ; PPC64-P8-NEXT:    li 4, 16399
@@ -101,7 +208,7 @@ define i128 @test_copysign(ppc_fp128 %x) nounwind  {
 ; PPC64-P8-NEXT:    xor 4, 6, 4
 ; PPC64-P8-NEXT:    blr
 ;
-; PPC64-LABEL: test_copysign:
+; PPC64-LABEL: test_copysign_const:
 ; PPC64:       # %bb.0: # %entry
 ; PPC64-NEXT:    stfd 1, -8(1)
 ; PPC64-NEXT:    li 4, 16399
@@ -114,7 +221,7 @@ define i128 @test_copysign(ppc_fp128 %x) nounwind  {
 ; PPC64-NEXT:    xor 4, 6, 4
 ; PPC64-NEXT:    blr
 ;
-; PPC32-LABEL: test_copysign:
+; PPC32-LABEL: test_copysign_const:
 ; PPC32:       # %bb.0: # %entry
 ; PPC32-NEXT:    stwu 1, -32(1)
 ; PPC32-NEXT:    stfd 1, 24(1)

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