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
12 lines
506 B
C
12 lines
506 B
C
// RUN: %clang_cc1 -target-feature -mmx -target-feature +sse2 -triple i686-pc-linux-gnu -emit-llvm -o - %s | FileCheck %s
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// no-mmx should put mmx into memory
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typedef int __attribute__((vector_size (8))) i32v2;
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int a(i32v2 x) { return x[0]; }
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// CHECK-LABEL: define{{.*}} i32 @a(i64 noundef %x.coerce)
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// but SSE2 vectors should still go into an SSE2 register
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typedef int __attribute__((vector_size (16))) i32v4;
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int b(i32v4 x) { return x[0]; }
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// CHECK-LABEL: define{{.*}} i32 @b(<4 x i32> noundef %x)
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