e573a9c035
Specifying the vectorization width was supposed to implicitly enable vectorization, except that it wasn't really doing this. It was only setting the vectorize.width metadata, but not vectorize.enable. This should fix PR27643. Differential Revision: https://reviews.llvm.org/D66290 llvm-svn: 372082
76 lines
2.4 KiB
C++
76 lines
2.4 KiB
C++
// RUN: %clang_cc1 -triple x86_64-apple-darwin -std=c++11 -emit-llvm -o - %s | FileCheck %s
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void test0(int *List, int Length) {
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// CHECK-LABEL: @{{.*}}test0{{.*}}(
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// CHECK: br label {{.*}}, !llvm.loop ![[LOOP0:.*]]
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#pragma clang loop vectorize(enable)
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for (int i = 0; i < Length; i++)
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List[i] = i * 2;
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}
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void test1(int *List, int Length) {
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// CHECK-LABEL: @{{.*}}test1{{.*}}(
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// CHECK: br label {{.*}}, !llvm.loop ![[LOOP1:.*]]
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#pragma clang loop vectorize(enable) vectorize_predicate(enable)
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for (int i = 0; i < Length; i++)
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List[i] = i * 2;
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}
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void test2(int *List, int Length) {
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// CHECK-LABEL: @{{.*}}test2{{.*}}(
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// CHECK: br label {{.*}}, !llvm.loop ![[LOOP2:.*]]
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#pragma clang loop vectorize(enable) vectorize_predicate(disable)
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for (int i = 0; i < Length; i++)
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List[i] = i * 2;
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}
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// vectorize_predicate(enable) implies vectorize(enable)
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void test3(int *List, int Length) {
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// CHECK-LABEL: @{{.*}}test3{{.*}}(
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// CHECK: br label {{.*}}, !llvm.loop ![[LOOP3:.*]]
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#pragma clang loop vectorize_predicate(enable)
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for (int i = 0; i < Length; i++)
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List[i] = i * 2;
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}
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// Check that disabling vectorization means a vectorization width of 1, and
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// also that vectorization_predicate isn't enabled.
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void test4(int *List, int Length) {
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// CHECK-LABEL: @{{.*}}test4{{.*}}(
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// CHECK: br label {{.*}}, !llvm.loop ![[LOOP4:.*]]
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#pragma clang loop vectorize(disable)
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for (int i = 0; i < Length; i++)
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List[i] = i * 2;
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}
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// Check that vectorize and vectorize_predicate are disabled.
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void test5(int *List, int Length) {
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// CHECK-LABEL: @{{.*}}test5{{.*}}(
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// CHECK: br label {{.*}}, !llvm.loop ![[LOOP5:.*]]
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#pragma clang loop vectorize(disable) vectorize_predicate(enable)
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for (int i = 0; i < Length; i++)
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List[i] = i * 2;
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}
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// CHECK: ![[LOOP0]] = distinct !{![[LOOP0]], !3}
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// CHECK-NEXT: !3 = !{!"llvm.loop.vectorize.enable", i1 true}
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// CHECK-NEXT: ![[LOOP1]] = distinct !{![[LOOP1]], !5, !3}
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// CHECK-NEXT: !5 = !{!"llvm.loop.vectorize.predicate.enable", i1 true}
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// CHECK-NEXT: ![[LOOP2]] = distinct !{![[LOOP2]], !7, !3}
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// CHECK-NEXT: !7 = !{!"llvm.loop.vectorize.predicate.enable", i1 false}
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// CHECK-NEXT: ![[LOOP3]] = distinct !{![[LOOP3]], !5, !3}
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// CHECK-NEXT: ![[LOOP4]] = distinct !{![[LOOP4]], !3, !10}
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// CHECK-NEXT: !10 = !{!"llvm.loop.vectorize.width", i32 1}
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// CHECK-NEXT: ![[LOOP5]] = distinct !{![[LOOP5]], !3, !10}
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