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
25 lines
669 B
C
25 lines
669 B
C
// RUN: %clang_cc1 -triple i686-pc-linux -emit-llvm < %s | FileCheck %s
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// All of these should uses the memory representation of _Bool
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// CHECK-LABEL: %struct.teststruct1 = type { i8, i8 }
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// CHECK-LABEL: @test1 ={{.*}} global %struct.teststruct1
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struct teststruct1 {_Bool a, b;} test1;
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// CHECK-LABEL: @test2 ={{.*}} global i8* null
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_Bool* test2;
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// CHECK-LABEL: @test3 ={{.*}} global [10 x i8]
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_Bool test3[10];
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// CHECK-LABEL: @test4 ={{.*}} global [0 x i8]* null
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_Bool (*test4)[];
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// CHECK-LABEL: define{{.*}} void @f(i32 noundef %x)
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void f(int x) {
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// CHECK: alloca i8, align 1
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_Bool test5;
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// CHECK: alloca i8, i32 %{{.*}}, align 1
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_Bool test6[x];
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}
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