27 lines
782 B
LLVM
27 lines
782 B
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -S -simplifycfg < %s | FileCheck %s
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%ST = type { i8, i8 }
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define i8* @test1(%ST* %x, i8* %y) nounwind {
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; CHECK-LABEL: @test1(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[CMP:%.*]] = icmp eq %ST* [[X:%.*]], null
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; CHECK-NEXT: [[INCDEC_PTR:%.*]] = getelementptr [[ST:%.*]], %ST* [[X]], i32 0, i32 1
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; CHECK-NEXT: [[INCDEC_PTR_Y:%.*]] = select i1 [[CMP]], i8* [[INCDEC_PTR]], i8* [[Y:%.*]]
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; CHECK-NEXT: ret i8* [[INCDEC_PTR_Y]]
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;
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entry:
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%cmp = icmp eq %ST* %x, null
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br i1 %cmp, label %if.then, label %if.end
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if.then:
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%incdec.ptr = getelementptr %ST, %ST* %x, i32 0, i32 1
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br label %if.end
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if.end:
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%x.addr = phi i8* [ %incdec.ptr, %if.then ], [ %y, %entry ]
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ret i8* %x.addr
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}
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