; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py ; RUN: llc < %s -mtriple=i686-- | FileCheck %s --check-prefixes=ALL,i686 ; RUN: llc < %s -mtriple=x86_64-- | FileCheck %s -check-prefixes=ALL,x86_64 %0 = type { x86_fp80, x86_fp80 } ; This is basically this code on x86-64: ; _Complex long double test() { return 1.0; } define %0 @test() { ; ALL-LABEL: test: ; ALL: # %bb.0: ; ALL-NEXT: fldz ; ALL-NEXT: fld1 ; ALL-NEXT: ret{{[l|q]}} %A = fpext double 1.0 to x86_fp80 %B = fpext double 0.0 to x86_fp80 %mrv = insertvalue %0 undef, x86_fp80 %A, 0 %mrv1 = insertvalue %0 %mrv, x86_fp80 %B, 1 ret %0 %mrv1 } ;_test2: ; fld1 ; fld %st(0) ; ret define %0 @test2() { ; ALL-LABEL: test2: ; ALL: # %bb.0: ; ALL-NEXT: fld1 ; ALL-NEXT: fld %st(0) ; ALL-NEXT: ret{{[l|q]}} %A = fpext double 1.0 to x86_fp80 %mrv = insertvalue %0 undef, x86_fp80 %A, 0 %mrv1 = insertvalue %0 %mrv, x86_fp80 %A, 1 ret %0 %mrv1 } ; Uses both values. define void @call1(ptr%P1, ptr%P2) { ; i686-LABEL: call1: ; i686: # %bb.0: ; i686-NEXT: pushl %edi ; i686-NEXT: .cfi_def_cfa_offset 8 ; i686-NEXT: pushl %esi ; i686-NEXT: .cfi_def_cfa_offset 12 ; i686-NEXT: .cfi_offset %esi, -12 ; i686-NEXT: .cfi_offset %edi, -8 ; i686-NEXT: movl {{[0-9]+}}(%esp), %esi ; i686-NEXT: movl {{[0-9]+}}(%esp), %edi ; i686-NEXT: calll test@PLT ; i686-NEXT: fstpt (%edi) ; i686-NEXT: fstpt (%esi) ; i686-NEXT: popl %esi ; i686-NEXT: .cfi_def_cfa_offset 8 ; i686-NEXT: popl %edi ; i686-NEXT: .cfi_def_cfa_offset 4 ; i686-NEXT: retl ; ; x86_64-LABEL: call1: ; x86_64: # %bb.0: ; x86_64-NEXT: pushq %r14 ; x86_64-NEXT: .cfi_def_cfa_offset 16 ; x86_64-NEXT: pushq %rbx ; x86_64-NEXT: .cfi_def_cfa_offset 24 ; x86_64-NEXT: pushq %rax ; x86_64-NEXT: .cfi_def_cfa_offset 32 ; x86_64-NEXT: .cfi_offset %rbx, -24 ; x86_64-NEXT: .cfi_offset %r14, -16 ; x86_64-NEXT: movq %rsi, %r14 ; x86_64-NEXT: movq %rdi, %rbx ; x86_64-NEXT: callq test@PLT ; x86_64-NEXT: fstpt (%rbx) ; x86_64-NEXT: fstpt (%r14) ; x86_64-NEXT: addq $8, %rsp ; x86_64-NEXT: .cfi_def_cfa_offset 24 ; x86_64-NEXT: popq %rbx ; x86_64-NEXT: .cfi_def_cfa_offset 16 ; x86_64-NEXT: popq %r14 ; x86_64-NEXT: .cfi_def_cfa_offset 8 ; x86_64-NEXT: retq %a = call %0 @test() %b = extractvalue %0 %a, 0 store x86_fp80 %b, ptr %P1 %c = extractvalue %0 %a, 1 store x86_fp80 %c, ptr %P2 ret void } ; Uses both values, requires fxch define void @call2(ptr%P1, ptr%P2) { ; i686-LABEL: call2: ; i686: # %bb.0: ; i686-NEXT: pushl %edi ; i686-NEXT: .cfi_def_cfa_offset 8 ; i686-NEXT: pushl %esi ; i686-NEXT: .cfi_def_cfa_offset 12 ; i686-NEXT: .cfi_offset %esi, -12 ; i686-NEXT: .cfi_offset %edi, -8 ; i686-NEXT: movl {{[0-9]+}}(%esp), %esi ; i686-NEXT: movl {{[0-9]+}}(%esp), %edi ; i686-NEXT: calll test@PLT ; i686-NEXT: fxch %st(1) ; i686-NEXT: fstpt (%edi) ; i686-NEXT: fstpt (%esi) ; i686-NEXT: popl %esi ; i686-NEXT: .cfi_def_cfa_offset 8 ; i686-NEXT: popl %edi ; i686-NEXT: .cfi_def_cfa_offset 4 ; i686-NEXT: retl ; ; x86_64-LABEL: call2: ; x86_64: # %bb.0: ; x86_64-NEXT: pushq %r14 ; x86_64-NEXT: .cfi_def_cfa_offset 16 ; x86_64-NEXT: pushq %rbx ; x86_64-NEXT: .cfi_def_cfa_offset 24 ; x86_64-NEXT: pushq %rax ; x86_64-NEXT: .cfi_def_cfa_offset 32 ; x86_64-NEXT: .cfi_offset %rbx, -24 ; x86_64-NEXT: .cfi_offset %r14, -16 ; x86_64-NEXT: movq %rsi, %r14 ; x86_64-NEXT: movq %rdi, %rbx ; x86_64-NEXT: callq test@PLT ; x86_64-NEXT: fxch %st(1) ; x86_64-NEXT: fstpt (%rbx) ; x86_64-NEXT: fstpt (%r14) ; x86_64-NEXT: addq $8, %rsp ; x86_64-NEXT: .cfi_def_cfa_offset 24 ; x86_64-NEXT: popq %rbx ; x86_64-NEXT: .cfi_def_cfa_offset 16 ; x86_64-NEXT: popq %r14 ; x86_64-NEXT: .cfi_def_cfa_offset 8 ; x86_64-NEXT: retq %a = call %0 @test() %b = extractvalue %0 %a, 1 store x86_fp80 %b, ptr %P1 %c = extractvalue %0 %a, 0 store x86_fp80 %c, ptr %P2 ret void } ; Uses ST(0), ST(1) is dead but must be popped. define void @call3(ptr%P1, ptr%P2) { ; i686-LABEL: call3: ; i686: # %bb.0: ; i686-NEXT: pushl %esi ; i686-NEXT: .cfi_def_cfa_offset 8 ; i686-NEXT: .cfi_offset %esi, -8 ; i686-NEXT: movl {{[0-9]+}}(%esp), %esi ; i686-NEXT: calll test@PLT ; i686-NEXT: fstp %st(1) ; i686-NEXT: fstpt (%esi) ; i686-NEXT: popl %esi ; i686-NEXT: .cfi_def_cfa_offset 4 ; i686-NEXT: retl ; ; x86_64-LABEL: call3: ; x86_64: # %bb.0: ; x86_64-NEXT: pushq %rbx ; x86_64-NEXT: .cfi_def_cfa_offset 16 ; x86_64-NEXT: .cfi_offset %rbx, -16 ; x86_64-NEXT: movq %rdi, %rbx ; x86_64-NEXT: callq test@PLT ; x86_64-NEXT: fstp %st(1) ; x86_64-NEXT: fstpt (%rbx) ; x86_64-NEXT: popq %rbx ; x86_64-NEXT: .cfi_def_cfa_offset 8 ; x86_64-NEXT: retq %a = call %0 @test() %b = extractvalue %0 %a, 0 store x86_fp80 %b, ptr %P1 ret void } ; Uses ST(1), ST(0) is dead and must be popped. define void @call4(ptr%P1, ptr%P2) { ; i686-LABEL: call4: ; i686: # %bb.0: ; i686-NEXT: pushl %esi ; i686-NEXT: .cfi_def_cfa_offset 8 ; i686-NEXT: .cfi_offset %esi, -8 ; i686-NEXT: movl {{[0-9]+}}(%esp), %esi ; i686-NEXT: calll test@PLT ; i686-NEXT: fstp %st(0) ; i686-NEXT: fstpt (%esi) ; i686-NEXT: popl %esi ; i686-NEXT: .cfi_def_cfa_offset 4 ; i686-NEXT: retl ; ; x86_64-LABEL: call4: ; x86_64: # %bb.0: ; x86_64-NEXT: pushq %rbx ; x86_64-NEXT: .cfi_def_cfa_offset 16 ; x86_64-NEXT: .cfi_offset %rbx, -16 ; x86_64-NEXT: movq %rsi, %rbx ; x86_64-NEXT: callq test@PLT ; x86_64-NEXT: fstp %st(0) ; x86_64-NEXT: fstpt (%rbx) ; x86_64-NEXT: popq %rbx ; x86_64-NEXT: .cfi_def_cfa_offset 8 ; x86_64-NEXT: retq %a = call %0 @test() %c = extractvalue %0 %a, 1 store x86_fp80 %c, ptr %P2 ret void }