77 lines
2.6 KiB
C++
77 lines
2.6 KiB
C++
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// 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]], [[MP:![0-9]+]], [[GEN3:![0-9]+]]}
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// CHECK: [[MP]] = !{!"llvm.loop.mustprogress"}
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// CHECK-NEXT: [[GEN3]] = !{!"llvm.loop.vectorize.enable", i1 true}
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// CHECK-NEXT: ![[LOOP1]] = distinct !{![[LOOP1]], [[MP]], [[GEN6:![0-9]+]], [[GEN3]]}
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// CHECK-NEXT: [[GEN6]] = !{!"llvm.loop.vectorize.predicate.enable", i1 true}
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// CHECK-NEXT: ![[LOOP2]] = distinct !{![[LOOP2]], [[MP]], [[GEN8:![0-9]+]], [[GEN3]]}
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// CHECK-NEXT: [[GEN8]] = !{!"llvm.loop.vectorize.predicate.enable", i1 false}
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// CHECK-NEXT: ![[LOOP3]] = distinct !{![[LOOP3]], [[MP]], [[GEN6]], [[GEN3]]}
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// CHECK-NEXT: ![[LOOP4]] = distinct !{![[LOOP4]], [[MP]], [[GEN10:![0-9]+]]}
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// CHECK-NEXT: [[GEN10]] = !{!"llvm.loop.vectorize.width", i32 1}
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// CHECK-NEXT: ![[LOOP5]] = distinct !{![[LOOP5]], [[MP]], [[GEN10]]}
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