RPCS3/llvm
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm.git synced 2025-01-05 03:10:41 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

ARM: add some integer/floating point conversion libcalls

Browse Source 
Add some Windows on ARM specific library calls.  These are provided by msvcrt,
and can be used to perform integer to floating-point conversions (and
vice-versa) mirroring similar functions in the RTABI.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208949 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Saleem Abdulrasool 2014-05-16 05:41:33 +00:00
parent 9bc1b73c9e
commit 36b8b48bbb
2 changed files with 96 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
lib/Target/ARM/ARMISelLowering.cpp
View File

@ -418,6 +418,28 @@ ARMTargetLowering::ARMTargetLowering(TargetMachine &TM)
setLibcallCallingConv(RTLIB::MEMSET, CallingConv::ARM_AAPCS);
}
if (Subtarget->isTargetWindows()) {
static const struct {
const RTLIB::Libcall Op;
const char * const Name;
const CallingConv::ID CC;
} LibraryCalls[] = {
{ RTLIB::FPTOSINT_F32_I64, "__stoi64", CallingConv::ARM_AAPCS_VFP },
{ RTLIB::FPTOSINT_F64_I64, "__dtoi64", CallingConv::ARM_AAPCS_VFP },
{ RTLIB::FPTOUINT_F32_I64, "__stou64", CallingConv::ARM_AAPCS_VFP },
{ RTLIB::FPTOUINT_F64_I64, "__dtou64", CallingConv::ARM_AAPCS_VFP },
{ RTLIB::SINTTOFP_I64_F32, "__i64tos", CallingConv::ARM_AAPCS_VFP },
{ RTLIB::SINTTOFP_I64_F64, "__i64tod", CallingConv::ARM_AAPCS_VFP },
{ RTLIB::UINTTOFP_I64_F32, "__u64tos", CallingConv::ARM_AAPCS_VFP },
{ RTLIB::UINTTOFP_I64_F64, "__u64tod", CallingConv::ARM_AAPCS_VFP },
};
for (const auto &LC : LibraryCalls) {
setLibcallName(LC.Op, LC.Name);
setLibcallCallingConv(LC.Op, LC.CC);
}
}
// Use divmod compiler-rt calls for iOS 5.0 and later.
if (Subtarget->getTargetTriple().isiOS() &&
!Subtarget->getTargetTriple().isOSVersionLT(5, 0)) {

74
test/CodeGen/ARM/Windows/integer-floating-point-conversion.ll Normal file
View File

@ -0,0 +1,74 @@
; RUN: llc -mtriple thumbv7-windows -filetype asm -o - %s | FileCheck %s
define arm_aapcs_vfpcc i64 @stoi64(float %f) {
entry:
%conv = fptosi float %f to i64
ret i64 %conv
}
; CHECK-LABEL: stoi64
; CHECK: bl __stoi64
define arm_aapcs_vfpcc i64 @stou64(float %f) {
entry:
%conv = fptoui float %f to i64
ret i64 %conv
}
; CHECK-LABEL: stou64
; CHECK: bl __stou64
define arm_aapcs_vfpcc float @i64tos(i64 %i64) {
entry:
%conv = sitofp i64 %i64 to float
ret float %conv
}
; CHECK-LABEL: i64tos
; CHECK: bl __i64tos
define arm_aapcs_vfpcc float @u64tos(i64 %u64) {
entry:
%conv = uitofp i64 %u64 to float
ret float %conv
}
; CHECK-LABEL: u64tos
; CHECK: bl __u64tos
define arm_aapcs_vfpcc i64 @dtoi64(double %d) {
entry:
%conv = fptosi double %d to i64
ret i64 %conv
}
; CHECK-LABEL: dtoi64
; CHECK: bl __dtoi64
define arm_aapcs_vfpcc i64 @dtou64(double %d) {
entry:
%conv = fptoui double %d to i64
ret i64 %conv
}
; CHECK-LABEL: dtou64
; CHECK: bl __dtou64
define arm_aapcs_vfpcc double @i64tod(i64 %i64) {
entry:
%conv = sitofp i64 %i64 to double
ret double %conv
}
; CHECK-LABEL: i64tod
; CHECK: bl __i64tod
define arm_aapcs_vfpcc double @u64tod(i64 %i64) {
entry:
%conv = uitofp i64 %i64 to double
ret double %conv
}
; CHECK-LABEL: u64tod
; CHECK: bl __u64tod