1b1c8d83d3
Turning on `enable_noundef_analysis` flag allows better codegen by removing freeze instructions. I modified clang by renaming `enable_noundef_analysis` flag to `disable-noundef-analysis` and turning it off by default. Test updates are made as a separate patch: D108453 Reviewed By: eugenis Differential Revision: https://reviews.llvm.org/D105169
31 lines
964 B
C
31 lines
964 B
C
// RUN: %clang_cc1 -triple x86_64-windows -fms-extensions -Wno-implicit-function-declaration -S -emit-llvm %s -o - | FileCheck %s
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// CHECK: %[[src:[0-9-]+]] = call i8* @llvm.localaddress()
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// CHECK-NEXT: %cleanup.dest = load i32, i32* %cleanup.dest.slot, align 4
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// CHECK-NEXT: %[[src2:[0-9-]+]] = icmp ne i32 %cleanup.dest, 0
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// CHECK-NEXT: %[[src3:[0-9-]+]] = zext i1 %[[src2]] to i8
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// CHECK-NEXT: call void @"?fin$0@0@seh_abnormal_exits@@"(i8 noundef %[[src3]], i8* noundef %[[src]])
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void seh_abnormal_exits(int *Counter) {
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for (int i = 0; i < 5; i++) {
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__try {
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if (i == 0)
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continue; // abnormal termination
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else if (i == 1)
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goto t10; // abnormal termination
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else if (i == 2)
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__leave; // normal execution
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else if (i == 4)
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return; // abnormal termination
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}
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__finally {
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if (AbnormalTermination()) {
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*Counter += 1;
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}
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}
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t10:;
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}
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return; // *Counter == 3
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}
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