62 lines
1.8 KiB
LLVM
62 lines
1.8 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -enable-shrink-wrap=true | FileCheck %s
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;; Ensure that shrink-wrapping understands that INLINEASM_BR may exit
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;; the block before the end, and you cannot simply place stack
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;; adjustment at the end of that block.
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target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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declare dso_local i32 @fn()
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; Function Attrs: uwtable
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define i32 @test1(i32 %v) {
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; CHECK-LABEL: test1:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: pushq %rax
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; CHECK-NEXT: .cfi_def_cfa_offset 16
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; CHECK-NEXT: testl %edi, %edi
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; CHECK-NEXT: je .LBB0_3
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; CHECK-NEXT: # %bb.1: # %if.end
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; CHECK-NEXT: callq fn
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; CHECK-NEXT: #APP
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; CHECK-NEXT: # jump to .Ltmp0
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; CHECK-NEXT: #NO_APP
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; CHECK-NEXT: # %bb.2: # %return
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; CHECK-NEXT: movl $4, %eax
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; CHECK-NEXT: popq %rcx
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; CHECK-NEXT: .cfi_def_cfa_offset 8
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; CHECK-NEXT: retq
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; CHECK-NEXT: .LBB0_3: # %ret0
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; CHECK-NEXT: .cfi_def_cfa_offset 16
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; CHECK-NEXT: xorl %eax, %eax
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; CHECK-NEXT: popq %rcx
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; CHECK-NEXT: .cfi_def_cfa_offset 8
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; CHECK-NEXT: retq
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; CHECK-NEXT: .Ltmp0: # Block address taken
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; CHECK-NEXT: .LBB0_4: # %two
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; CHECK-NEXT: .cfi_def_cfa_offset 16
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; CHECK-NEXT: popq %rax
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; CHECK-NEXT: .cfi_def_cfa_offset 8
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; CHECK-NEXT: jmp fn # TAILCALL
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entry:
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%tobool = icmp eq i32 %v, 0
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br i1 %tobool, label %ret0, label %if.end
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ret0:
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ret i32 0
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if.end:
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%call = tail call i32 @fn()
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callbr void asm sideeffect "# jump to $0", "X,~{dirflag},~{fpsr},~{flags}"(i8* blockaddress(@test1, %two))
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to label %return [label %two]
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two:
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%call1 = tail call i32 @fn()
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br label %return
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return:
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%retval.1 = phi i32 [ %call1, %two ], [ 4, %if.end ]
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ret i32 %retval.1
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}
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