53 lines
1.8 KiB
C++
53 lines
1.8 KiB
C++
// Check code generation
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// RUN: %clang_cc1 -verify -triple x86_64-pc-linux-gnu -fopenmp -fopenmp-version=51 -emit-llvm %s -o - | FileCheck %s --check-prefix=IR
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// Check same results after serialization round-trip
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// RUN: %clang_cc1 -verify -triple x86_64-pc-linux-gnu -fopenmp -fopenmp-version=51 -emit-pch -o %t %s
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// RUN: %clang_cc1 -verify -triple x86_64-pc-linux-gnu -fopenmp -fopenmp-version=51 -include-pch %t -emit-llvm %s -o - | FileCheck %s --check-prefix=IR
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// expected-no-diagnostics
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#ifndef HEADER
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#define HEADER
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// placeholder for loop body code.
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extern "C" void body(...) {}
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// IR-LABEL: @func(
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// IR-NEXT: [[ENTRY:.*]]:
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// IR-NEXT: %[[I:.+]] = alloca i32, align 4
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// IR-NEXT: store i32 7, i32* %[[I]], align 4
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// IR-NEXT: br label %[[FOR_COND:.+]]
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// IR-EMPTY:
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// IR-NEXT: [[FOR_COND]]:
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// IR-NEXT: %[[TMP0:.+]] = load i32, i32* %[[I]], align 4
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// IR-NEXT: %[[CMP:.+]] = icmp slt i32 %[[TMP0]], 17
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// IR-NEXT: br i1 %[[CMP]], label %[[FOR_BODY:.+]], label %[[FOR_END:.+]]
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// IR-EMPTY:
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// IR-NEXT: [[FOR_BODY]]:
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// IR-NEXT: %[[TMP1:.+]] = load i32, i32* %[[I]], align 4
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// IR-NEXT: call void (...) @body(i32 noundef %[[TMP1]])
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// IR-NEXT: br label %[[FOR_INC:.+]]
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// IR-EMPTY:
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// IR-NEXT: [[FOR_INC]]:
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// IR-NEXT: %[[TMP2:.+]] = load i32, i32* %[[I]], align 4
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// IR-NEXT: %[[ADD:.+]] = add nsw i32 %[[TMP2]], 3
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// IR-NEXT: store i32 %[[ADD]], i32* %[[I]], align 4
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// IR-NEXT: br label %[[FOR_COND]], !llvm.loop ![[LOOP2:[0-9]+]]
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// IR-EMPTY:
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// IR-NEXT: [[FOR_END]]:
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// IR-NEXT: ret void
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// IR-NEXT: }
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extern "C" void func() {
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#pragma omp unroll full
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for (int i = 7; i < 17; i += 3)
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body(i);
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}
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#endif /* HEADER */
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// IR: ![[LOOP2]] = distinct !{![[LOOP2]], ![[LOOPPROP3:[0-9]+]], ![[LOOPPROP4:[0-9]+]]}
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// IR: ![[LOOPPROP3]] = !{!"llvm.loop.mustprogress"}
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// IR: ![[LOOPPROP4]] = !{!"llvm.loop.unroll.full"}
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