38 lines
1.2 KiB
LLVM
38 lines
1.2 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -mem2reg -simplifycfg -simplifycfg-require-and-preserve-domtree=1 -S | FileCheck %s
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define i32 @test(i32 %x) {
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; CHECK-LABEL: @test(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[TOBOOL:%.*]] = icmp ne i32 [[X:%.*]], 0
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; CHECK-NEXT: br i1 [[TOBOOL]], label [[IF_THEN:%.*]], label [[IF_ELSE:%.*]]
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; CHECK: if.then:
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; CHECK-NEXT: [[TMP1:%.*]] = call i32 asm "mov $0, #1", "=r"() #[[ATTR0:[0-9]+]]
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; CHECK-NEXT: br label [[IF_END:%.*]]
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; CHECK: if.else:
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; CHECK-NEXT: [[TMP2:%.*]] = call i32 asm "mov $0, #2", "=r"() #[[ATTR0]]
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; CHECK-NEXT: br label [[IF_END]]
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; CHECK: if.end:
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; CHECK-NEXT: [[Y_0:%.*]] = phi i32 [ [[TMP1]], [[IF_THEN]] ], [ [[TMP2]], [[IF_ELSE]] ]
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; CHECK-NEXT: ret i32 [[Y_0]]
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;
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entry:
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%y = alloca i32, align 4
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%tobool = icmp ne i32 %x, 0
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br i1 %tobool, label %if.then, label %if.else
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if.then:
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%tmp1 = call i32 asm "mov $0, #1", "=r"() nounwind readnone
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store i32 %tmp1, i32* %y, align 4
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br label %if.end
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if.else:
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%tmp2 = call i32 asm "mov $0, #2", "=r"() nounwind readnone
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store i32 %tmp2, i32* %y, align 4
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br label %if.end
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if.end:
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%tmp3 = load i32, i32* %y, align 4
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ret i32 %tmp3
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}
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