xref: /llvm-project/llvm/test/CodeGen/X86/soft-fp.ll (revision 2f448bf509432c1a19ec46ab8cbc7353c03c6280)
1; RUN: llc < %s -mtriple=i686--    -mattr=+mmx,+sse,+soft-float \
2; RUN:     | FileCheck %s --check-prefix=SOFT1 --check-prefix=CHECK
3; RUN: llc < %s -mtriple=x86_64-- -mattr=+mmx,+sse2,+soft-float \
4; RUN:     | FileCheck %s --check-prefix=SOFT2 --check-prefix=CHECK
5; RUN: llc < %s -mtriple=x86_64-- -mattr=+mmx,+sse \
6; RUN:     | FileCheck %s --check-prefix=SSE1 --check-prefix=CHECK
7; RUN: llc < %s -mtriple=x86_64-- -mattr=+mmx,+sse2 \
8; RUN:     | FileCheck %s --check-prefix=SSE2 --check-prefix=CHECK
9; RUN: llc < %s -mtriple=x86_64-gnux32 -mattr=+mmx,+sse2,+soft-float | FileCheck %s
10
11; CHECK-NOT: xmm{{[0-9]+}}
12
13%struct.__va_list_tag = type { i32, i32, ptr, ptr }
14
15define i32 @t1(i32 %a, ...) nounwind {
16entry:
17	%va = alloca [1 x %struct.__va_list_tag], align 8		; <ptr> [#uses=2]
18	call void @llvm.va_start(ptr %va)
19	%va3 = getelementptr [1 x %struct.__va_list_tag], ptr %va, i64 0, i64 0		; <ptr> [#uses=1]
20	call void @bar(ptr %va3) nounwind
21	call void @llvm.va_end(ptr %va)
22	ret i32 undef
23; CHECK-LABEL: t1:
24; CHECK:       ret{{[lq]}}
25}
26
27declare void @llvm.va_start(ptr) nounwind
28
29declare void @bar(ptr)
30
31declare void @llvm.va_end(ptr) nounwind
32
33define float @t2(float %a, float %b) nounwind readnone {
34entry:
35	%0 = fadd float %a, %b		; <float> [#uses=1]
36	ret float %0
37; CHECK-LABEL: t2:
38; SOFT1-NOT:   xmm{{[0-9]+}}
39; SOFT2-NOT:   xmm{{[0-9]+}}
40; SSE1:        xmm{{[0-9]+}}
41; SSE2:        xmm{{[0-9]+}}
42; CHECK:       ret{{[lq]}}
43}
44
45; soft-float means no SSE instruction and passing fp128 as pair of i64.
46define fp128 @t3(fp128 %a, fp128 %b) nounwind readnone {
47entry:
48	%0 = fadd fp128 %b, %a
49	ret fp128 %0
50; CHECK-LABEL: t3:
51; SOFT1-NOT:   xmm{{[0-9]+}}
52; SOFT2-NOT:   xmm{{[0-9]+}}
53; SSE1:        xmm{{[0-9]+}}
54; SSE2:        xmm{{[0-9]+}}
55; SOFT1:       ret{{[lq]}}
56; SOFT2:       ret{{[lq]}}
57; SSE1:       jmp __addtf3
58; SSE2:       jmp __addtf3
59}
60