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[PPCVSXFMAMutate] Temporarily disable this pass

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llvm-svn: 262573
This commit is contained in:
Tim Shen 2016-03-03 01:27:35 +00:00
parent 20014bb517
commit 464ed3d905
5 changed files with 17 additions and 11 deletions
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10
lib/Target/PowerPC/PPCVSXFMAMutate.cpp
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@ -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"

4
test/CodeGen/PowerPC/fma-assoc.ll
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@ -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) {

4
test/CodeGen/PowerPC/fma-ext.ll
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@ -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]

2
test/CodeGen/PowerPC/fma-mutate.ll
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@ -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"

8
test/CodeGen/PowerPC/fma.ll
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@ -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