b198b4e864
[Clang part] These patches rename the loop unrolling and loop vectorizer metadata such that they have a common 'llvm.loop.' prefix. Metadata name changes: llvm.vectorizer.* => llvm.loop.vectorizer.* llvm.loopunroll.* => llvm.loop.unroll.* This was a suggestion from an earlier review (http://reviews.llvm.org/D4090) which added the loop unrolling metadata. Patch by Mark Heffernan. llvm-svn: 211712
52 lines
1.7 KiB
C
52 lines
1.7 KiB
C
// RUN: %clang_cc1 -fopenmp=libiomp5 -emit-llvm %s -o - | FileCheck %s
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void h1(float *c, float *a, float *b, int size)
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{
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// CHECK-LABEL: define void @h1
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int t = 0;
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#pragma omp simd safelen(16) linear(t)
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for (int i = 0; i < size; ++i) {
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c[i] = a[i] * a[i] + b[i] * b[t];
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++t;
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// do not emit parallel_loop_access metadata due to usage of safelen clause.
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// CHECK-NOT: store float {{.+}}, float* {{.+}}, align {{.+}}, !llvm.mem.parallel_loop_access {{![0-9]+}}
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}
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}
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void h2(float *c, float *a, float *b, int size)
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{
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// CHECK-LABEL: define void @h2
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int t = 0;
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#pragma omp simd linear(t)
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for (int i = 0; i < size; ++i) {
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c[i] = a[i] * a[i] + b[i] * b[t];
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++t;
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// CHECK: store float {{.+}}, float* {{.+}}, align {{.+}}, !llvm.mem.parallel_loop_access [[LOOP_H2_HEADER:![0-9]+]]
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}
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}
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void h3(float *c, float *a, float *b, int size)
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{
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// CHECK-LABEL: define void @h3
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#pragma omp simd
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for (int i = 0; i < size; ++i) {
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for (int j = 0; j < size; ++j) {
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c[j*i] = a[i] * b[j];
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}
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}
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// do not emit parallel_loop_access for nested loop.
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// CHECK-NOT: store float {{.+}}, float* {{.+}}, align {{.+}}, !llvm.mem.parallel_loop_access {{![0-9]+}}
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}
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// Metadata for h1:
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// CHECK: [[LOOP_H1_HEADER:![0-9]+]] = metadata !{metadata [[LOOP_H1_HEADER]], metadata [[LOOP_WIDTH_16:![0-9]+]], metadata [[LOOP_VEC_ENABLE:![0-9]+]]}
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// CHECK: [[LOOP_WIDTH_16]] = metadata !{metadata !"llvm.loop.vectorize.width", i32 16}
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// CHECK: [[LOOP_VEC_ENABLE]] = metadata !{metadata !"llvm.loop.vectorize.enable", i1 true}
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//
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// Metadata for h2:
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// CHECK: [[LOOP_H2_HEADER]] = metadata !{metadata [[LOOP_H2_HEADER]], metadata [[LOOP_VEC_ENABLE]]}
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//
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// Metadata for h3:
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// CHECK: [[LOOP_H3_HEADER:![0-9]+]] = metadata !{metadata [[LOOP_H3_HEADER]], metadata [[LOOP_VEC_ENABLE]]}
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//
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