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https://github.com/RPCS3/llvm-mirror.git
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5b796ed527
Pass small FP values in GPRs or stack memory according the the normal convention. This is what gcc -mno-sse does on Win64. I adjusted the conditions under which we emit an error to check if the argument or return value would be passed in an XMM register when SSE is disabled. This has a side effect of no longer emitting an error for FP arguments marked 'inreg' when targetting x86 with SSE disabled. Our calling convention logic was already assigning it to FP0/FP1, and then we emitted this error. That seems unnecessary, we can ignore 'inreg' and compile it without SSE. Reviewers: jyknight, aemerson Differential Revision: https://reviews.llvm.org/D70465
130 lines
3.3 KiB
LLVM
130 lines
3.3 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -mtriple=x86_64-windows-msvc < %s -mattr=-sse | FileCheck %s
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; RUN: llc -mtriple=x86_64-windows-gnu < %s -mattr=-sse | FileCheck %s
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define void @recv_double(double %v, double* %p) {
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; CHECK-LABEL: recv_double:
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; CHECK: # %bb.0:
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; CHECK-NEXT: movq %rcx, (%rdx)
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; CHECK-NEXT: retq
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store double %v, double* %p
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ret void
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}
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define void @recv_float(float %v, float* %p) {
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; CHECK-LABEL: recv_float:
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; CHECK: # %bb.0:
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; CHECK-NEXT: movl %ecx, (%rdx)
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; CHECK-NEXT: retq
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store float %v, float* %p
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ret void
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}
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define dso_local double @ret_double(double* %p) {
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; CHECK-LABEL: ret_double:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: movq (%rcx), %rax
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; CHECK-NEXT: retq
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entry:
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%v = load double, double* %p
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ret double %v
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}
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define dso_local float @ret_float(float* %p) {
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; CHECK-LABEL: ret_float:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: movl (%rcx), %eax
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; CHECK-NEXT: retq
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entry:
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%v = load float, float* %p
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ret float %v
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}
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declare void @take_double(double)
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declare void @take_float(float)
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define void @pass_double(double* %p) {
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; CHECK-LABEL: pass_double:
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; CHECK: # %bb.0:
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; CHECK-NEXT: subq $40, %rsp
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; CHECK-NEXT: .seh_stackalloc 40
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; CHECK-NEXT: .seh_endprologue
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; CHECK-NEXT: movq (%rcx), %rcx
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; CHECK-NEXT: callq take_double
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; CHECK-NEXT: nop
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; CHECK-NEXT: addq $40, %rsp
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; CHECK-NEXT: retq
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; CHECK-NEXT: .seh_handlerdata
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; CHECK-NEXT: .text
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; CHECK-NEXT: .seh_endproc
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%v = load double, double* %p
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call void @take_double(double %v)
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ret void
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}
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define void @pass_float(float* %p) {
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; CHECK-LABEL: pass_float:
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; CHECK: # %bb.0:
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; CHECK-NEXT: subq $40, %rsp
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; CHECK-NEXT: .seh_stackalloc 40
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; CHECK-NEXT: .seh_endprologue
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; CHECK-NEXT: movl (%rcx), %ecx
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; CHECK-NEXT: callq take_float
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; CHECK-NEXT: nop
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; CHECK-NEXT: addq $40, %rsp
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; CHECK-NEXT: retq
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; CHECK-NEXT: .seh_handlerdata
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; CHECK-NEXT: .text
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; CHECK-NEXT: .seh_endproc
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%v = load float, float* %p
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call void @take_float(float %v)
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ret void
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}
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declare double @produce_double()
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declare float @produce_float()
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define void @call_double(double* %p) {
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; CHECK-LABEL: call_double:
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; CHECK: # %bb.0:
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; CHECK-NEXT: pushq %rsi
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; CHECK-NEXT: .seh_pushreg %rsi
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; CHECK-NEXT: subq $32, %rsp
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; CHECK-NEXT: .seh_stackalloc 32
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; CHECK-NEXT: .seh_endprologue
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; CHECK-NEXT: movq %rcx, %rsi
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; CHECK-NEXT: callq produce_double
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; CHECK-NEXT: movq %rax, (%rsi)
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; CHECK-NEXT: addq $32, %rsp
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; CHECK-NEXT: popq %rsi
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; CHECK-NEXT: retq
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; CHECK-NEXT: .seh_handlerdata
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; CHECK-NEXT: .text
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; CHECK-NEXT: .seh_endproc
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%v = call double @produce_double()
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store double %v, double* %p
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ret void
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}
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define void @call_float(float* %p) {
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; CHECK-LABEL: call_float:
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; CHECK: # %bb.0:
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; CHECK-NEXT: pushq %rsi
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; CHECK-NEXT: .seh_pushreg %rsi
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; CHECK-NEXT: subq $32, %rsp
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; CHECK-NEXT: .seh_stackalloc 32
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; CHECK-NEXT: .seh_endprologue
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; CHECK-NEXT: movq %rcx, %rsi
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; CHECK-NEXT: callq produce_float
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; CHECK-NEXT: movl %eax, (%rsi)
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; CHECK-NEXT: addq $32, %rsp
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; CHECK-NEXT: popq %rsi
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; CHECK-NEXT: retq
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; CHECK-NEXT: .seh_handlerdata
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; CHECK-NEXT: .text
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; CHECK-NEXT: .seh_endproc
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%v = call float @produce_float()
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store float %v, float* %p
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ret void
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}
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