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[ARM] Honor -mfloat-abi for libcall calling convention

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As far as I can tell, this matches gcc: -mfloat-abi determines the
calling convention for all functions except those explicitly defined as
soft-float in the ARM RTABI.

This change only affects cases where the user specifies -mfloat-abi to
override the default calling convention derived from the target triple.

Fixes https://bugs.llvm.org//show_bug.cgi?id=34530.

Differential Revision: https://reviews.llvm.org/D38299

llvm-svn: 316708
This commit is contained in:
Eli Friedman 2017-10-26 21:42:32 +00:00
parent 3773cf7e77
commit ee208de178
2 changed files with 36 additions and 31 deletions
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10
lib/Target/ARM/ARMISelLowering.cpp
View File

@ -231,15 +231,7 @@ ARMTargetLowering::ARMTargetLowering(const TargetMachine &TM,
if (!Subtarget->isTargetDarwin() && !Subtarget->isTargetIOS() &&
!Subtarget->isTargetWatchOS()) {
const auto &E = Subtarget->getTargetTriple().getEnvironment();
bool IsHFTarget = E == Triple::EABIHF || E == Triple::GNUEABIHF ||
E == Triple::MuslEABIHF;
// Windows is a special case. Technically, we will replace all of the "GNU"
// calls with calls to MSVCRT if appropriate and adjust the calling
// convention then.
IsHFTarget = IsHFTarget || Subtarget->isTargetWindows();
bool IsHFTarget = TM.Options.FloatABIType == FloatABI::Hard;
for (int LCID = 0; LCID < RTLIB::UNKNOWN_LIBCALL; ++LCID)
setLibcallCallingConv(static_cast<RTLIB::Libcall>(LCID),
IsHFTarget ? CallingConv::ARM_AAPCS_VFP

57
test/CodeGen/Thumb2/intrinsics-cc.ll
View File

@ -1,41 +1,54 @@
; RUN: llc -mtriple thumbv7-unknown-none-eabi -float-abi soft -filetype asm -o - %s | FileCheck %s -check-prefix CHECK-MATCH
; RUN: llc -mtriple thumbv7-unknown-none-eabi -float-abi hard -filetype asm -o - %s | FileCheck %s -check-prefix CHECK-MISMATCH -check-prefix CHECK-TO-SOFT
; RUN: llc -mtriple thumbv7-unknown-none-eabihf -float-abi soft -filetype asm -o - %s | FileCheck %s -check-prefix CHECK-MISMATCH -check-prefix CHECK-TO-HARD
; RUN: llc -mtriple thumbv7-unknown-none-eabihf -float-abi hard -filetype asm -o - %s | FileCheck %s -check-prefix CHECK-MATCH
; RUN: llc -mtriple thumbv7-unknown-none-eabi -float-abi soft -filetype asm -o - %s | FileCheck %s
; RUN: llc -mtriple thumbv7-unknown-none-eabi -float-abi hard -filetype asm -o - %s | FileCheck %s
; RUN: llc -mtriple thumbv7-unknown-none-eabihf -float-abi soft -filetype asm -o - %s | FileCheck %s
; RUN: llc -mtriple thumbv7-unknown-none-eabihf -float-abi hard -filetype asm -o - %s | FileCheck %s
; RUN: llc -mtriple thumbv7-unknown-none-gnueabi -float-abi soft -filetype asm -o - %s | FileCheck %s -check-prefix CHECK-MATCH
; RUN: llc -mtriple thumbv7-unknown-none-gnueabi -float-abi hard -filetype asm -o - %s | FileCheck %s -check-prefix CHECK-MISMATCH -check-prefix CHECK-TO-SOFT
; RUN: llc -mtriple thumbv7-unknown-none-gnueabihf -float-abi soft -filetype asm -o - %s | FileCheck %s -check-prefix CHECK-MISMATCH -check-prefix CHECK-TO-HARD
; RUN: llc -mtriple thumbv7-unknown-none-gnueabihf -float-abi hard -filetype asm -o - %s | FileCheck %s -check-prefix CHECK-MATCH
; RUN: llc -mtriple thumbv7-unknown-none-gnueabi -float-abi soft -filetype asm -o - %s | FileCheck %s
; RUN: llc -mtriple thumbv7-unknown-none-gnueabi -float-abi hard -filetype asm -o - %s | FileCheck %s
; RUN: llc -mtriple thumbv7-unknown-none-gnueabihf -float-abi soft -filetype asm -o - %s | FileCheck %s
; RUN: llc -mtriple thumbv7-unknown-none-gnueabihf -float-abi hard -filetype asm -o - %s | FileCheck %s
; RUN: llc -mtriple thumbv7-unknown-none-musleabi -float-abi soft -filetype asm -o - %s | FileCheck %s -check-prefix CHECK-MATCH
; RUN: llc -mtriple thumbv7-unknown-none-musleabi -float-abi hard -filetype asm -o - %s | FileCheck %s -check-prefix CHECK-MISMATCH -check-prefix CHECK-TO-SOFT
; RUN: llc -mtriple thumbv7-unknown-none-musleabihf -float-abi soft -filetype asm -o - %s | FileCheck %s -check-prefix CHECK-MISMATCH -check-prefix CHECK-TO-HARD
; RUN: llc -mtriple thumbv7-unknown-none-musleabihf -float-abi hard -filetype asm -o - %s | FileCheck %s -check-prefix CHECK-MATCH
; RUN: llc -mtriple thumbv7-unknown-none-musleabi -float-abi soft -filetype asm -o - %s | FileCheck %s
; RUN: llc -mtriple thumbv7-unknown-none-musleabi -float-abi hard -filetype asm -o - %s | FileCheck %s
; RUN: llc -mtriple thumbv7-unknown-none-musleabihf -float-abi soft -filetype asm -o - %s | FileCheck %s
; RUN: llc -mtriple thumbv7-unknown-none-musleabihf -float-abi hard -filetype asm -o - %s | FileCheck %s
declare float @llvm.powi.f32(float, i32)
define float @f(float %f, i32 %i) {
define float @powi_f32(float %f, i32 %i) {
entry:
%0 = call float @llvm.powi.f32(float %f, i32 %i)
ret float %0
}
; CHECK-MATCH: b __powisf2
; CHECK-MISMATCH: bl __powisf2
; CHECK-TO-SOFT: vmov s0, r0
; CHECK-TO-HARD: vmov r0, s0
; CHECK: b __powisf2
declare double @llvm.powi.f64(double, i32)
define double @g(double %d, i32 %i) {
define double @powi_f64(double %d, i32 %i) {
entry:
%0 = call double @llvm.powi.f64(double %d, i32 %i)
ret double %0
}
; CHECK-MATCH: b __powidf2
; CHECK-MISMATCH: bl __powidf2
; CHECK-TO-SOFT: vmov d0, r0, r1
; CHECK-TO-HARD: vmov r0, r1, d0
; CHECK: b __powidf2
declare float @llvm.floor.f32(float)
define float @floor_f32(float %f) {
entry:
%0 = call float @llvm.floor.f32(float %f)
ret float %0
}
; CHECK: b floorf
declare double @llvm.floor.f64(double)
define double @floor_f64(double %d) {
entry:
%0 = call double @llvm.floor.f64(double %d)
ret double %0
}
; CHECK: b floor