36 lines
1.1 KiB
LLVM
36 lines
1.1 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -codegenprepare -S -mtriple=x86_64-linux < %s | FileCheck %s
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define i32 @test1(i8* %d) nounwind {
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; CHECK-LABEL: @test1(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[L:%.*]] = load i8, i8* [[D:%.*]], align 1
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; CHECK-NEXT: [[CMP:%.*]] = icmp eq i8 [[L]], 0
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; CHECK-NEXT: br i1 [[CMP]], label [[EXIT:%.*]], label [[IF_END:%.*]]
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; CHECK: if.end:
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; CHECK-NEXT: br label [[EXIT]]
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; CHECK: exit:
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; CHECK-NEXT: [[TMP0:%.*]] = icmp eq i8 [[L]], 0
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; CHECK-NEXT: [[CONV:%.*]] = zext i1 [[TMP0]] to i32
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; CHECK-NEXT: ret i32 [[CONV]]
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;
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entry:
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%l = load i8, i8* %d
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%cmp = icmp eq i8 %l, 0
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br i1 %cmp, label %exit, label %if.end
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if.end:
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%gep = getelementptr i8, i8* %d, i32 42
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%call = call i64 @foo(i8* %gep) nounwind readonly willreturn
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%cmp2 = icmp ne i64 %call, 0
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call void @llvm.assume(i1 %cmp2)
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br label %exit
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exit:
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%conv = zext i1 %cmp to i32
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ret i32 %conv
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}
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declare i64 @foo(i8*) nounwind readonly willreturn
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declare void @llvm.assume(i1 noundef) nounwind willreturn
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