191 lines
5.3 KiB
LLVM
191 lines
5.3 KiB
LLVM
; RUN: llc < %s -mtriple=x86_64-pc-win32 | FileCheck %s --check-prefix=CHECK --check-prefix=PUSHF
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; RUN: llc < %s -mtriple=x86_64-pc-win32 -mattr=+sahf | FileCheck %s --check-prefix=SAHF
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define i32 @f1(i32 %p1, i32 %p2, i32 %p3, i32 %p4, i32 %p5) "no-frame-pointer-elim"="true" {
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; CHECK-LABEL: f1:
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; CHECK: movl 48(%rbp), %eax
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ret i32 %p5
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}
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define void @f2(i32 %p, ...) "no-frame-pointer-elim"="true" {
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; CHECK-LABEL: f2:
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; CHECK: .seh_stackalloc 8
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; CHECK: movq %rsp, %rbp
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; CHECK: .seh_setframe 5, 0
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; CHECK: movq %rdx, 32(%rbp)
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; CHECK: leaq 32(%rbp), %rax
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%ap = alloca i8, align 8
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call void @llvm.va_start(i8* %ap)
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ret void
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}
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define i8* @f3() "no-frame-pointer-elim"="true" {
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; CHECK-LABEL: f3:
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; CHECK: movq %rsp, %rbp
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; CHECK: .seh_setframe 5, 0
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; CHECK: movq 8(%rbp), %rax
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%ra = call i8* @llvm.returnaddress(i32 0)
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ret i8* %ra
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}
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define i8* @f4() "no-frame-pointer-elim"="true" {
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; CHECK-LABEL: f4:
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; CHECK: pushq %rbp
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; CHECK: .seh_pushreg 5
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; CHECK: subq $304, %rsp
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; CHECK: .seh_stackalloc 304
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; CHECK: leaq 128(%rsp), %rbp
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; CHECK: .seh_setframe 5, 128
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; CHECK: .seh_endprologue
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; CHECK: movq 184(%rbp), %rax
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alloca [300 x i8]
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%ra = call i8* @llvm.returnaddress(i32 0)
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ret i8* %ra
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}
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declare void @external(i8*)
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define void @f5() "no-frame-pointer-elim"="true" {
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; CHECK-LABEL: f5:
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; CHECK: subq $336, %rsp
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; CHECK: .seh_stackalloc 336
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; CHECK: leaq 128(%rsp), %rbp
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; CHECK: .seh_setframe 5, 128
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; CHECK: leaq -92(%rbp), %rcx
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; CHECK: callq external
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%a = alloca [300 x i8]
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%gep = getelementptr [300 x i8], [300 x i8]* %a, i32 0, i32 0
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call void @external(i8* %gep)
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ret void
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}
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define void @f6(i32 %p, ...) "no-frame-pointer-elim"="true" {
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; CHECK-LABEL: f6:
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; CHECK: subq $336, %rsp
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; CHECK: .seh_stackalloc 336
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; CHECK: leaq 128(%rsp), %rbp
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; CHECK: .seh_setframe 5, 128
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; CHECK: leaq -92(%rbp), %rcx
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; CHECK: callq external
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%a = alloca [300 x i8]
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%gep = getelementptr [300 x i8], [300 x i8]* %a, i32 0, i32 0
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call void @external(i8* %gep)
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ret void
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}
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define i32 @f7(i32 %a, i32 %b, i32 %c, i32 %d, i32 %e) "no-frame-pointer-elim"="true" {
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; CHECK-LABEL: f7:
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; CHECK: pushq %rbp
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; CHECK: .seh_pushreg 5
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; CHECK: subq $304, %rsp
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; CHECK: .seh_stackalloc 304
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; CHECK: leaq 128(%rsp), %rbp
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; CHECK: .seh_setframe 5, 128
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; CHECK: andq $-64, %rsp
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; CHECK: movl 224(%rbp), %eax
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; CHECK: leaq 176(%rbp), %rsp
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alloca [300 x i8], align 64
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ret i32 %e
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}
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define i32 @f8(i32 %a, i32 %b, i32 %c, i32 %d, i32 %e) "no-frame-pointer-elim"="true" {
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; CHECK-LABEL: f8:
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; CHECK: subq $352, %rsp
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; CHECK: .seh_stackalloc 352
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; CHECK: leaq 128(%rsp), %rbp
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; CHECK: .seh_setframe 5, 128
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%alloca = alloca [300 x i8], align 64
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; CHECK: andq $-64, %rsp
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; CHECK: movq %rsp, %rbx
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alloca i32, i32 %a
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; CHECK: movl %ecx, %eax
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; CHECK: leaq 15(,%rax,4), %rcx
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; CHECK: movabsq $34359738352, %rax
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; CHECK: andq %rcx, %rax
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; CHECK: callq __chkstk
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; CHECK: subq %rax, %rsp
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%gep = getelementptr [300 x i8], [300 x i8]* %alloca, i32 0, i32 0
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call void @external(i8* %gep)
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; CHECK: subq $32, %rsp
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; CHECK: leaq (%rbx), %rcx
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; CHECK: callq external
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; CHECK: addq $32, %rsp
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ret i32 %e
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; CHECK: movl %esi, %eax
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; CHECK: leaq 224(%rbp), %rsp
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}
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define i64 @f9() {
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entry:
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; CHECK-LABEL: f9:
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; CHECK: pushq %rbp
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; CHECK: .seh_pushreg 5
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; CHECK-NEXT: movq %rsp, %rbp
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; CHECK: .seh_setframe 5, 0
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; CHECK: .seh_endprologue
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%call = call i64 @llvm.x86.flags.read.u64()
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; CHECK-NEXT: pushfq
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; CHECK-NEXT: popq %rax
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ret i64 %call
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; CHECK-NEXT: popq %rbp
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; CHECK-NEXT: retq
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}
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declare i64 @dummy()
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define i64 @f10(i64* %foo, i64 %bar, i64 %baz) {
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; CHECK-LABEL: f10:
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; CHECK: pushq %rbp
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; CHECK: .seh_pushreg 5
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; CHECK: pushq %rsi
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; CHECK: .seh_pushreg 6
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; CHECK: pushq %rdi
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; CHECK: .seh_pushreg 7
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; CHECK: subq $32, %rsp
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; CHECK: .seh_stackalloc 32
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; CHECK: leaq 32(%rsp), %rbp
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; CHECK: .seh_setframe 5, 32
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; CHECK: .seh_endprologue
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%cx = cmpxchg i64* %foo, i64 %bar, i64 %baz seq_cst seq_cst
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; PUSHF: lock cmpxchgq
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; PUSHF-NEXT: pushfq
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; PUSHF-NEXT: popq %[[REG:.*]]
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; SAHF: lock cmpxchgq
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; SAHF-NEXT: seto %al
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; SAHF-NEXT: lahf
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%v = extractvalue { i64, i1 } %cx, 0
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%p = extractvalue { i64, i1 } %cx, 1
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%call = call i64 @dummy()
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; PUSHF: callq dummy
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; PUSHF-NEXT: pushq %[[REG]]
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; PUSHF-NEXT: popfq
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; SAHF: callq dummy
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; SAHF-NEXT: pushq
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; SAHF: addb $127, %al
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; SAHF-NEXT: sahf
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; SAHF-NEXT: popq
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%sel = select i1 %p, i64 %call, i64 %bar
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; CHECK-NEXT: cmovneq
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ret i64 %sel
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; CHECK-NEXT: addq $32, %rsp
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; CHECK-NEXT: popq %rdi
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; CHECK-NEXT: popq %rsi
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; CHECK-NEXT: popq %rbp
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}
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declare i8* @llvm.returnaddress(i32) nounwind readnone
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declare i64 @llvm.x86.flags.read.u64()
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declare void @llvm.va_start(i8*) nounwind
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