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ARM: Tweak usage of '*vfp' compiler_rt functions.

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Only use them if the subtarget has ARM mode, as these routines are implemented
as ARM code.

rdar://15302004

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193381 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jim Grosbach 2013-10-24 23:07:11 +00:00
parent 5759c3a029
commit 3115047182
2 changed files with 4 additions and 3 deletions
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3
lib/Target/ARM/ARMISelLowering.cpp
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@ -177,7 +177,8 @@ ARMTargetLowering::ARMTargetLowering(TargetMachine &TM)
if (Subtarget->isTargetIOS()) {
// Uses VFP for Thumb libfuncs if available.
if (Subtarget->isThumb() && Subtarget->hasVFP2()) {
if (Subtarget->isThumb() && Subtarget->hasVFP2() &&
Subtarget->hasARMOps()) {
// Single-precision floating-point arithmetic.
setLibcallName(RTLIB::ADD_F32, "__addsf3vfp");
setLibcallName(RTLIB::SUB_F32, "__subsf3vfp");

4
test/CodeGen/ARM/darwin-eabi.ll
View File

@ -1,5 +1,5 @@
; RUN: llc -mtriple=thumbv7m-apple-darwin-eabi -mcpu=cortex-m3 < %s | FileCheck %s --check-prefix=CHECK-M3
; RUN: llc -mtriple=thumbv7em-apple-darwin-eabi -mcpu=cortex-m4 < %s | FileCheck %s --check-prefix=CHECK-M4
; RUN: llc -mtriple=thumbv7m-apple-darwin -mcpu=cortex-m3 < %s | FileCheck %s --check-prefix=CHECK-M3
; RUN: llc -mtriple=thumbv7em-apple-darwin -mcpu=cortex-m4 < %s | FileCheck %s --check-prefix=CHECK-M4
define float @float_op(float %lhs, float %rhs) {
%sum = fadd float %lhs, %rhs