llvm-project/llvm/test/CodeGen/X86/compact-unwind.ll

31 lines
919 B
LLVM

; RUN: llc < %s -disable-cfi -disable-fp-elim -mtriple x86_64-apple-darwin11 | FileCheck %s
%ty = type { i8* }
@gv = external global i32
; This is aligning the stack with a push of a random register.
; CHECK: pushq %rax
; Even though we can't encode %rax into the compact unwind, We still want to be
; able to generate a compact unwind encoding in this particular case.
;
; CHECK: __LD,__compact_unwind
; CHECK: _foo ## Range Start
; CHECK: 16842753 ## Compact Unwind Encoding: 0x1010001
define i8* @foo(i64 %size) {
%addr = alloca i64, align 8
%tmp20 = load i32* @gv, align 4
%tmp21 = call i32 @bar()
%tmp25 = load i64* %addr, align 8
%tmp26 = inttoptr i64 %tmp25 to %ty*
%tmp29 = getelementptr inbounds %ty* %tmp26, i64 0, i32 0
%tmp34 = load i8** %tmp29, align 8
%tmp35 = getelementptr inbounds i8* %tmp34, i64 %size
store i8* %tmp35, i8** %tmp29, align 8
ret i8* null
}
declare i32 @bar()