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TheRock/compiler/amd-llvm/llvm/test/CodeGen/X86/sjlj-do-not-merge-stack-slots.ll
derek.holloway 7502bf64a4
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

51 lines
1.5 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 6
; RUN: llc -mtriple=x86_64-- < %s | FileCheck %s
define void @sjlj_do_not_merge_stack_slots() nounwind {
; CHECK-LABEL: sjlj_do_not_merge_stack_slots:
; CHECK: # %bb.0: # %entry
; CHECK-NEXT: subq $40, %rsp
; CHECK-NEXT: leaq {{[0-9]+}}(%rsp), %rdi
; CHECK-NEXT: callq setjmp@PLT
; CHECK-NEXT: testl %eax, %eax
; CHECK-NEXT: je .LBB0_1
; CHECK-NEXT: # %bb.2: # %else
; CHECK-NEXT: leaq {{[0-9]+}}(%rsp), %rdi
; CHECK-NEXT: callq opaque@PLT
; CHECK-NEXT: addq $40, %rsp
; CHECK-NEXT: retq
; CHECK-NEXT: .LBB0_1: # %then
; CHECK-NEXT: leaq {{[0-9]+}}(%rsp), %rdi
; CHECK-NEXT: callq escape@PLT
; CHECK-NEXT: addq $40, %rsp
; CHECK-NEXT: retq
entry:
%obj = alloca [8 x i8], align 4
%buf = alloca [12 x i8], align 4
%obj.1 = alloca [8 x i8], align 4
call void @llvm.lifetime.start.p0(ptr %obj)
call void @llvm.lifetime.start.p0(ptr %buf)
%rv = call i32 @setjmp(ptr %buf)
%c = icmp eq i32 %rv, 0
br i1 %c, label %then, label %else
then:
call void @escape(ptr %obj)
br label %exit
else:
call void @llvm.lifetime.start.p0(ptr %obj.1)
call void @opaque(ptr %obj.1)
call void @llvm.lifetime.end.p0(ptr %obj.1)
br label %exit
exit:
call void @llvm.lifetime.end.p0(ptr %buf)
call void @llvm.lifetime.end.p0(ptr %obj)
ret void
}
declare i32 @setjmp(ptr) returns_twice
declare void @escape(ptr)
declare void @opaque(ptr)