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
13 lines
592 B
C
13 lines
592 B
C
// RUN: %clang_cc1 -emit-llvm %s -o %t -triple=x86_64-apple-darwin10
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// RUN: FileCheck < %t %s
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// Make sure this doesn't crash. We used to generate a byval here and wanted to
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// verify a valid alignment, but we now realize we can use an i16 and let the
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// backend guarantee the alignment.
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void a(int,int,int,int,int,int,__complex__ char);
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void b(__complex__ char *y) { a(0,0,0,0,0,0,*y); }
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// CHECK-LABEL: define{{.*}} void @b
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// CHECK: alloca { i8, i8 }*, align 8
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// CHECK: call void @a(i32 noundef 0, i32 noundef 0, i32 noundef 0, i32 noundef 0, i32 noundef 0, i32 noundef 0, i16 {{.*}})
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