derek.holloway
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50 lines
2.3 KiB
C++
50 lines
2.3 KiB
C++
// RUN: %clang_cc1 -triple x86_64-apple-darwin -std=c++11 -emit-llvm -o - %s -O0 -disable-llvm-optzns -fno-unroll-loops | FileCheck --check-prefix=NO_UNROLL_MD %s
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// RUN: %clang_cc1 -triple x86_64-apple-darwin -std=c++11 -emit-llvm -o - %s -O1 -disable-llvm-optzns -fno-unroll-loops | FileCheck --check-prefix=UNROLL_DISABLED_MD %s
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// RUN: %clang_cc1 -triple x86_64-apple-darwin -std=c++11 -emit-llvm -o - %s -O2 -disable-llvm-optzns -fno-unroll-loops | FileCheck --check-prefix=UNROLL_DISABLED_MD %s
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// RUN: %clang_cc1 -triple x86_64-apple-darwin -std=c++11 -emit-llvm -o - %s -O3 -disable-llvm-optzns -fno-unroll-loops | FileCheck --check-prefix=UNROLL_DISABLED_MD %s
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// RUN: %clang_cc1 -triple x86_64-apple-darwin -std=c++11 -emit-llvm -o - %s -O3 -disable-llvm-optzns | FileCheck --check-prefix=NO_UNROLL_MD %s
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// NO_UNROLL_MD-NOT: llvm.loop.unroll.disable
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// Verify unroll.disable metadata is added to while loop with -fno-unroll-loops
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// and optlevel > 0.
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void while_test(int *List, int Length) {
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// UNROLL_DISABLED_MD: define {{.*}} @_Z10while_test
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int i = 0;
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while (i < Length) {
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// UNROLL_DISABLED_MD: br label {{.*}}, !llvm.loop [[LOOP_1:![0-9]+]]
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List[i] = i * 2;
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i++;
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}
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}
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// Verify unroll.disable metadata is added to do-while loop with
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// -fno-unroll-loops and optlevel > 0.
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void do_test(int *List, int Length) {
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// UNROLL_DISABLED_MD: define {{.*}} @_Z7do_test
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int i = 0;
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do {
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// UNROLL_DISABLED_MD: br i1 {{.*}}, label {{.*}}, label {{.*}}, !llvm.loop [[LOOP_2:![0-9]+]]
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List[i] = i * 2;
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i++;
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} while (i < Length);
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}
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// Verify unroll.disable metadata is added to while loop with -fno-unroll-loops
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// and optlevel > 0.
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void for_test(int *List, int Length) {
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// UNROLL_DISABLED_MD: define {{.*}} @_Z8for_test
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for (int i = 0; i < Length; i++) {
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// UNROLL_DISABLED_MD: br label {{.*}}, !llvm.loop [[LOOP_3:![0-9]+]]
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List[i] = i * 2;
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}
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}
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// UNROLL_DISABLED_MD: [[LOOP_1]] = distinct !{[[LOOP_1]], [[MP:![0-9]+]], [[UNROLL_DISABLE:![0-9]+]]}
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// UNROLL_DISABLED_MD: [[MP]] = !{!"llvm.loop.mustprogress"}
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// UNROLL_DISABLED_MD: [[UNROLL_DISABLE]] = !{!"llvm.loop.unroll.disable"}
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// UNROLL_DISABLED_MD: [[LOOP_2]] = distinct !{[[LOOP_2]], [[MP]], [[UNROLL_DISABLE]]}
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// UNROLL_DISABLED_MD: [[LOOP_3]] = distinct !{[[LOOP_3]], [[MP]], [[UNROLL_DISABLE]]}
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