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|
; RUN: llc < %s -mtriple=x86_64-pc-win32 | FileCheck %s --check-prefix=CHECK --check-prefix=PUSHF
; RUN: llc < %s -mtriple=x86_64-pc-win32 -mattr=+sahf | FileCheck %s --check-prefix=SAHF
define i32 @f1(i32 %p1, i32 %p2, i32 %p3, i32 %p4, i32 %p5) "no-frame-pointer-elim"="true" {
; CHECK-LABEL: f1:
; CHECK: movl 48(%rbp), %eax
ret i32 %p5
}
define void @f2(i32 %p, ...) "no-frame-pointer-elim"="true" {
; CHECK-LABEL: f2:
; CHECK: .seh_stackalloc 8
; CHECK: movq %rsp, %rbp
; CHECK: .seh_setframe 5, 0
; CHECK: movq %rdx, 32(%rbp)
; CHECK: leaq 32(%rbp), %rax
%ap = alloca i8, align 8
call void @llvm.va_start(i8* %ap)
ret void
}
define i8* @f3() "no-frame-pointer-elim"="true" {
; CHECK-LABEL: f3:
; CHECK: movq %rsp, %rbp
; CHECK: .seh_setframe 5, 0
; CHECK: movq 8(%rbp), %rax
%ra = call i8* @llvm.returnaddress(i32 0)
ret i8* %ra
}
define i8* @f4() "no-frame-pointer-elim"="true" {
; CHECK-LABEL: f4:
; CHECK: pushq %rbp
; CHECK: .seh_pushreg 5
; CHECK: subq $304, %rsp
; CHECK: .seh_stackalloc 304
; CHECK: leaq 128(%rsp), %rbp
; CHECK: .seh_setframe 5, 128
; CHECK: .seh_endprologue
; CHECK: movq 184(%rbp), %rax
alloca [300 x i8]
%ra = call i8* @llvm.returnaddress(i32 0)
ret i8* %ra
}
declare void @external(i8*)
define void @f5() "no-frame-pointer-elim"="true" {
; CHECK-LABEL: f5:
; CHECK: subq $336, %rsp
; CHECK: .seh_stackalloc 336
; CHECK: leaq 128(%rsp), %rbp
; CHECK: .seh_setframe 5, 128
; CHECK: leaq -92(%rbp), %rcx
; CHECK: callq external
%a = alloca [300 x i8]
%gep = getelementptr [300 x i8], [300 x i8]* %a, i32 0, i32 0
call void @external(i8* %gep)
ret void
}
define void @f6(i32 %p, ...) "no-frame-pointer-elim"="true" {
; CHECK-LABEL: f6:
; CHECK: subq $336, %rsp
; CHECK: .seh_stackalloc 336
; CHECK: leaq 128(%rsp), %rbp
; CHECK: .seh_setframe 5, 128
; CHECK: leaq -92(%rbp), %rcx
; CHECK: callq external
%a = alloca [300 x i8]
%gep = getelementptr [300 x i8], [300 x i8]* %a, i32 0, i32 0
call void @external(i8* %gep)
ret void
}
define i32 @f7(i32 %a, i32 %b, i32 %c, i32 %d, i32 %e) "no-frame-pointer-elim"="true" {
; CHECK-LABEL: f7:
; CHECK: pushq %rbp
; CHECK: .seh_pushreg 5
; CHECK: subq $304, %rsp
; CHECK: .seh_stackalloc 304
; CHECK: leaq 128(%rsp), %rbp
; CHECK: .seh_setframe 5, 128
; CHECK: andq $-64, %rsp
; CHECK: movl 224(%rbp), %eax
; CHECK: leaq 176(%rbp), %rsp
alloca [300 x i8], align 64
ret i32 %e
}
define i32 @f8(i32 %a, i32 %b, i32 %c, i32 %d, i32 %e) "no-frame-pointer-elim"="true" {
; CHECK-LABEL: f8:
; CHECK: subq $352, %rsp
; CHECK: .seh_stackalloc 352
; CHECK: leaq 128(%rsp), %rbp
; CHECK: .seh_setframe 5, 128
%alloca = alloca [300 x i8], align 64
; CHECK: andq $-64, %rsp
; CHECK: movq %rsp, %rbx
alloca i32, i32 %a
; CHECK: movl %ecx, %eax
; CHECK: leaq 15(,%rax,4), %rcx
; CHECK: movabsq $34359738352, %rax
; CHECK: andq %rcx, %rax
; CHECK: callq __chkstk
; CHECK: subq %rax, %rsp
%gep = getelementptr [300 x i8], [300 x i8]* %alloca, i32 0, i32 0
call void @external(i8* %gep)
; CHECK: subq $32, %rsp
; CHECK: movq %rbx, %rcx
; CHECK: callq external
; CHECK: addq $32, %rsp
ret i32 %e
; CHECK: movl %esi, %eax
; CHECK: leaq 224(%rbp), %rsp
}
define i64 @f9() {
entry:
; CHECK-LABEL: f9:
; CHECK: pushq %rbp
; CHECK: .seh_pushreg 5
; CHECK-NEXT: movq %rsp, %rbp
; CHECK: .seh_setframe 5, 0
; CHECK: .seh_endprologue
%call = call i64 @llvm.x86.flags.read.u64()
; CHECK-NEXT: pushfq
; CHECK-NEXT: popq %rax
ret i64 %call
; CHECK-NEXT: popq %rbp
; CHECK-NEXT: retq
}
declare i64 @dummy()
define i64 @f10(i64* %foo, i64 %bar, i64 %baz) {
; CHECK-LABEL: f10:
; CHECK: pushq %rbp
; CHECK: .seh_pushreg 5
; CHECK: pushq %rsi
; CHECK: .seh_pushreg 6
; CHECK: pushq %rdi
; CHECK: .seh_pushreg 7
; CHECK: subq $32, %rsp
; CHECK: .seh_stackalloc 32
; CHECK: leaq 32(%rsp), %rbp
; CHECK: .seh_setframe 5, 32
; CHECK: .seh_endprologue
%cx = cmpxchg i64* %foo, i64 %bar, i64 %baz seq_cst seq_cst
; PUSHF: lock cmpxchgq
; PUSHF-NEXT: pushfq
; PUSHF-NEXT: popq %[[REG:.*]]
; SAHF: lock cmpxchgq
; SAHF-NEXT: seto %al
; SAHF-NEXT: lahf
%v = extractvalue { i64, i1 } %cx, 0
%p = extractvalue { i64, i1 } %cx, 1
%call = call i64 @dummy()
; PUSHF: callq dummy
; PUSHF-NEXT: pushq %[[REG]]
; PUSHF-NEXT: popfq
; SAHF: callq dummy
; SAHF-NEXT: pushq
; SAHF: addb $127, %al
; SAHF-NEXT: sahf
; SAHF-NEXT: popq
%sel = select i1 %p, i64 %call, i64 %bar
; CHECK-NEXT: cmovneq
ret i64 %sel
; CHECK-NEXT: addq $32, %rsp
; CHECK-NEXT: popq %rdi
; CHECK-NEXT: popq %rsi
; CHECK-NEXT: popq %rbp
}
define i8* @f11() "no-frame-pointer-elim"="true" {
; CHECK-LABEL: f11:
; CHECK: pushq %rbp
; CHECK: movq %rsp, %rbp
; CHECK: .seh_setframe 5, 0
; CHECK: leaq 8(%rbp), %rax
%aora = call i8* @llvm.addressofreturnaddress()
ret i8* %aora
}
define i8* @f12() {
; CHECK-LABEL: f12:
; CHECK-NOT: push
; CHECK: movq %rsp, %rax
%aora = call i8* @llvm.addressofreturnaddress()
ret i8* %aora
}
declare i8* @llvm.returnaddress(i32) nounwind readnone
declare i8* @llvm.addressofreturnaddress() nounwind readnone
declare i64 @llvm.x86.flags.read.u64()
declare void @llvm.va_start(i8*) nounwind
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