xref: /aosp_15_r20/external/llvm/test/CodeGen/X86/soft-fp.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58)

; RUN: llc < %s -march=x86    -mattr=+mmx,+sse,+soft-float \
; RUN:     | FileCheck %s --check-prefix=SOFT1 --check-prefix=CHECK
; RUN: llc < %s -march=x86-64 -mattr=+mmx,+sse2,+soft-float \
; RUN:     | FileCheck %s --check-prefix=SOFT2 --check-prefix=CHECK
; RUN: llc < %s -march=x86-64 -mattr=+mmx,+sse \
; RUN:     | FileCheck %s --check-prefix=SSE1 --check-prefix=CHECK
; RUN: llc < %s -march=x86-64 -mattr=+mmx,+sse2 \
; RUN:     | FileCheck %s --check-prefix=SSE2 --check-prefix=CHECK
; RUN: llc < %s -mtriple=x86_64-gnux32 -mattr=+mmx,+sse2,+soft-float | FileCheck %s

; CHECK-NOT: xmm{{[0-9]+}}

%struct.__va_list_tag = type { i32, i32, i8*, i8* }

define i32 @t1(i32 %a, ...) nounwind {
entry:
	%va = alloca [1 x %struct.__va_list_tag], align 8		; <[1 x %struct.__va_list_tag]*> [#uses=2]
	%va12 = bitcast [1 x %struct.__va_list_tag]* %va to i8*		; <i8*> [#uses=2]
	call void @llvm.va_start(i8* %va12)
	%va3 = getelementptr [1 x %struct.__va_list_tag], [1 x %struct.__va_list_tag]* %va, i64 0, i64 0		; <%struct.__va_list_tag*> [#uses=1]
	call void @bar(%struct.__va_list_tag* %va3) nounwind
	call void @llvm.va_end(i8* %va12)
	ret i32 undef
; CHECK-LABEL: t1:
; CHECK:       ret{{[lq]}}
}

declare void @llvm.va_start(i8*) nounwind

declare void @bar(%struct.__va_list_tag*)

declare void @llvm.va_end(i8*) nounwind

define float @t2(float %a, float %b) nounwind readnone {
entry:
	%0 = fadd float %a, %b		; <float> [#uses=1]
	ret float %0
; CHECK-LABEL: t2:
; SOFT1-NOT:   xmm{{[0-9]+}}
; SOFT2-NOT:   xmm{{[0-9]+}}
; SSE1:        xmm{{[0-9]+}}
; SSE2:        xmm{{[0-9]+}}
; CHECK:       ret{{[lq]}}
}

; soft-float means no SSE instruction and passing fp128 as pair of i64.
define fp128 @t3(fp128 %a, fp128 %b) nounwind readnone {
entry:
	%0 = fadd fp128 %b, %a
	ret fp128 %0
; CHECK-LABEL: t3:
; SOFT1-NOT:   xmm{{[0-9]+}}
; SOFT2-NOT:   xmm{{[0-9]+}}
; SSE1:        xmm{{[0-9]+}}
; SSE2:        xmm{{[0-9]+}}
; CHECK:       ret{{[lq]}}
}