diff options
author | Tim Shen <timshen91@gmail.com> | 2016-03-03 01:27:35 +0000 |
---|---|---|
committer | Tim Shen <timshen91@gmail.com> | 2016-03-03 01:27:35 +0000 |
commit | a06a324ebf3d6b58648d5f784bbe225badaeab8d (patch) | |
tree | 664fb8c02598e6d95510cf9fd7686f9647d2c278 | |
parent | 43605f82e5d3de6f1dbcb4122604872b70038efb (diff) |
[PPCVSXFMAMutate] Temporarily disable this pass
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@262573 91177308-0d34-0410-b5e6-96231b3b80d8
-rw-r--r-- | lib/Target/PowerPC/PPCVSXFMAMutate.cpp | 10 | ||||
-rw-r--r-- | test/CodeGen/PowerPC/fma-assoc.ll | 4 | ||||
-rw-r--r-- | test/CodeGen/PowerPC/fma-ext.ll | 4 | ||||
-rw-r--r-- | test/CodeGen/PowerPC/fma-mutate.ll | 2 | ||||
-rw-r--r-- | test/CodeGen/PowerPC/fma.ll | 8 |
5 files changed, 17 insertions, 11 deletions
diff --git a/lib/Target/PowerPC/PPCVSXFMAMutate.cpp b/lib/Target/PowerPC/PPCVSXFMAMutate.cpp index 2de8d79512b..e3580cac672 100644 --- a/lib/Target/PowerPC/PPCVSXFMAMutate.cpp +++ b/lib/Target/PowerPC/PPCVSXFMAMutate.cpp @@ -38,8 +38,14 @@ using namespace llvm; -static cl::opt<bool> DisableVSXFMAMutate("disable-ppc-vsx-fma-mutation", -cl::desc("Disable VSX FMA instruction mutation"), cl::Hidden); +// Temporarily disable FMA mutation by default, since it doesn't handle +// cross-basic-block intervals well. +// See: http://lists.llvm.org/pipermail/llvm-dev/2016-February/095669.html +// http://reviews.llvm.org/D17087 +static cl::opt<bool> DisableVSXFMAMutate( + "disable-ppc-vsx-fma-mutation", + cl::desc("Disable VSX FMA instruction mutation"), cl::init(true), + cl::Hidden); #define DEBUG_TYPE "ppc-vsx-fma-mutate" diff --git a/test/CodeGen/PowerPC/fma-assoc.ll b/test/CodeGen/PowerPC/fma-assoc.ll index 3044dd09128..4a2ca6010f6 100644 --- a/test/CodeGen/PowerPC/fma-assoc.ll +++ b/test/CodeGen/PowerPC/fma-assoc.ll @@ -1,5 +1,5 @@ -; RUN: llc < %s -march=ppc32 -fp-contract=fast -mattr=-vsx | FileCheck %s -; RUN: llc < %s -mtriple=powerpc64-unknown-linux-gnu -fp-contract=fast -mattr=+vsx -mcpu=pwr7 | FileCheck -check-prefix=CHECK-VSX %s +; RUN: llc < %s -march=ppc32 -fp-contract=fast -mattr=-vsx -disable-ppc-vsx-fma-mutation=false | FileCheck %s +; RUN: llc < %s -mtriple=powerpc64-unknown-linux-gnu -fp-contract=fast -mattr=+vsx -mcpu=pwr7 -disable-ppc-vsx-fma-mutation=false | FileCheck -check-prefix=CHECK-VSX %s define double @test_FMADD_ASSOC1(double %A, double %B, double %C, double %D, double %E) { diff --git a/test/CodeGen/PowerPC/fma-ext.ll b/test/CodeGen/PowerPC/fma-ext.ll index da7c34ccb9d..fc3489def7c 100644 --- a/test/CodeGen/PowerPC/fma-ext.ll +++ b/test/CodeGen/PowerPC/fma-ext.ll @@ -1,5 +1,5 @@ -; RUN: llc < %s -march=ppc32 -fp-contract=fast -mattr=-vsx | FileCheck %s -; RUN: llc < %s -mtriple=powerpc64-unknown-linux-gnu -fp-contract=fast -mattr=+vsx -mcpu=pwr7 | FileCheck -check-prefix=CHECK-VSX %s +; RUN: llc < %s -march=ppc32 -fp-contract=fast -mattr=-vsx -disable-ppc-vsx-fma-mutation=false | FileCheck %s +; RUN: llc < %s -mtriple=powerpc64-unknown-linux-gnu -fp-contract=fast -mattr=+vsx -mcpu=pwr7 -disable-ppc-vsx-fma-mutation=false | FileCheck -check-prefix=CHECK-VSX %s define double @test_FMADD_EXT1(float %A, float %B, double %C) { %D = fmul float %A, %B ; <float> [#uses=1] diff --git a/test/CodeGen/PowerPC/fma-mutate.ll b/test/CodeGen/PowerPC/fma-mutate.ll index 1a391f4c230..befd2d2e58b 100644 --- a/test/CodeGen/PowerPC/fma-mutate.ll +++ b/test/CodeGen/PowerPC/fma-mutate.ll @@ -3,7 +3,7 @@ ; same as the FMA target register. The second one is legal. The third ; one doesn't fit the feeding-copy pattern. -; RUN: llc < %s -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7 -enable-unsafe-fp-math -mattr=+vsx | FileCheck %s +; RUN: llc < %s -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7 -enable-unsafe-fp-math -mattr=+vsx -disable-ppc-vsx-fma-mutation=false | FileCheck %s target datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-f128:128:128-v128:128:128-n32:64" target triple = "powerpc64-unknown-linux-gnu" diff --git a/test/CodeGen/PowerPC/fma.ll b/test/CodeGen/PowerPC/fma.ll index 9cfef398edf..79c5e11d05c 100644 --- a/test/CodeGen/PowerPC/fma.ll +++ b/test/CodeGen/PowerPC/fma.ll @@ -1,7 +1,7 @@ -; RUN: llc < %s -march=ppc32 -fp-contract=fast -mattr=-vsx | FileCheck %s -; RUN: llc < %s -mtriple=powerpc64-unknown-linux-gnu -fp-contract=fast -mattr=+vsx -mcpu=pwr7 | FileCheck -check-prefix=CHECK-VSX %s -; RUN: llc < %s -mtriple=powerpc64-unknown-linux-gnu -fp-contract=fast -mcpu=pwr8 | FileCheck -check-prefix=CHECK-P8 %s -; RUN: llc < %s -mtriple=powerpc64le-unknown-linux-gnu -fp-contract=fast -mcpu=pwr8 | FileCheck -check-prefix=CHECK-P8 %s +; RUN: llc < %s -march=ppc32 -fp-contract=fast -mattr=-vsx -disable-ppc-vsx-fma-mutation=false | FileCheck %s +; RUN: llc < %s -mtriple=powerpc64-unknown-linux-gnu -fp-contract=fast -mattr=+vsx -mcpu=pwr7 -disable-ppc-vsx-fma-mutation=false | FileCheck -check-prefix=CHECK-VSX %s +; RUN: llc < %s -mtriple=powerpc64-unknown-linux-gnu -fp-contract=fast -mcpu=pwr8 -disable-ppc-vsx-fma-mutation=false | FileCheck -check-prefix=CHECK-P8 %s +; RUN: llc < %s -mtriple=powerpc64le-unknown-linux-gnu -fp-contract=fast -mcpu=pwr8 -disable-ppc-vsx-fma-mutation=false | FileCheck -check-prefix=CHECK-P8 %s declare double @dummy1(double) #0 declare double @dummy2(double, double) #0 |