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ARM64: don't generate __sincos_stret calls unless on MachO 

This should fix PR19314.

llvm-svn: 205514
This commit is contained in:
Tim Northover 2014-04-03 07:06:13 +00:00
parent f51ee3c416
commit c7c6a93704
2 changed files with 28 additions and 12 deletions
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15
llvm/lib/Target/ARM64/ARM64ISelLowering.cpp
View File

@ -351,11 +351,16 @@ ARM64TargetLowering::ARM64TargetLowering(ARM64TargetMachine &TM)
setOperationAction(ISD::PREFETCH, MVT::Other, Custom);
// For iOS, we don't want to the normal expansion of a libcall to
// sincos. We want to issue a libcall to __sincos_stret to avoid memory
// traffic.
setOperationAction(ISD::FSINCOS, MVT::f64, Custom);
setOperationAction(ISD::FSINCOS, MVT::f32, Custom);
if (Subtarget->isTargetMachO()) {
// For iOS, we don't want to the normal expansion of a libcall to
// sincos. We want to issue a libcall to __sincos_stret to avoid memory
// traffic.
setOperationAction(ISD::FSINCOS, MVT::f64, Custom);
setOperationAction(ISD::FSINCOS, MVT::f32, Custom);
} else {
setOperationAction(ISD::FSINCOS, MVT::f64, Expand);
setOperationAction(ISD::FSINCOS, MVT::f32, Expand);
}
// ARM64 does not have floating-point extending loads, i1 sign-extending load,
// floating-point truncating stores, or v2i32->v2i16 truncating store.

25
llvm/test/CodeGen/ARM64/sincos.ll
View File

@ -1,13 +1,19 @@
; RUN: llc < %s -mtriple=arm64-apple-ios7 | FileCheck %s
; RUN: llc < %s -mtriple=arm64-apple-ios7 | FileCheck %s --check-prefix CHECK-IOS
; RUN: llc < %s -mtriple=arm64-linux-gnu | FileCheck %s --check-prefix CHECK-LINUX
; Combine sin / cos into a single call.
; rdar://12856873
define float @test1(float %x) nounwind {
entry:
; CHECK-LABEL: test1:
; CHECK: bl ___sincosf_stret
; CHECK: fadd s0, s0, s1
; CHECK-IOS-LABEL: test1:
; CHECK-IOS: bl ___sincosf_stret
; CHECK-IOS: fadd s0, s0, s1
; CHECK-LINUX-LABEL: test1:
; CHECK-LINUX: bl sinf
; CHECK-LINUX: bl cosf
%call = tail call float @sinf(float %x) nounwind readnone
%call1 = tail call float @cosf(float %x) nounwind readnone
%add = fadd float %call, %call1
@ -16,9 +22,14 @@ entry:
define double @test2(double %x) nounwind {
entry:
; CHECK-LABEL: test2:
; CHECK: bl ___sincos_stret
; CHECK: fadd d0, d0, d1
; CHECK-IOS-LABEL: test2:
; CHECK-IOS: bl ___sincos_stret
; CHECK-IOS: fadd d0, d0, d1
; CHECK-LINUX-LABEL: test2:
; CHECK-LINUX: bl sin
; CHECK-LINUX: bl cos
%call = tail call double @sin(double %x) nounwind readnone
%call1 = tail call double @cos(double %x) nounwind readnone
%add = fadd double %call, %call1