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