derek.holloway
7502bf64a4
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51 lines
2.1 KiB
C
51 lines
2.1 KiB
C
// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fclangir -emit-cir %s -o %t.cir
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// RUN: FileCheck --check-prefix=CIR --input-file=%t.cir %s
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// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fclangir -emit-llvm %s -o %t-cir.ll
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// RUN: FileCheck --check-prefix=LLVM --input-file=%t-cir.ll %s
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// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -emit-llvm %s -o %t.ll
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// RUN: FileCheck --check-prefix=OGCG --input-file=%t.ll %s
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int addrcmp(const void* a, const void* b) {
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// CIR-LABEL: addrcmp
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// CIR: %[[R:.*]] = cir.ptr_diff
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// CIR: cir.cast integral %[[R]] : !s64i -> !s32i
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// LLVM-LABEL: define dso_local i32 @addrcmp(
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// LLVM: %[[PTR_A:.*]] = ptrtoint ptr {{.*}} to i64
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// LLVM: %[[PTR_B:.*]] = ptrtoint ptr {{.*}} to i64
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// LLVM: %[[SUB:.*]] = sub i64 %[[PTR_A]], %[[PTR_B]]
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// LLVM-NOT: sdiv
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// LLVM: trunc i64 %[[SUB]] to i32
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// OGCG-LABEL: define dso_local i32 @addrcmp(
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// OGCG: %[[PTR_A:.*]] = ptrtoint ptr {{.*}} to i64
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// OGCG: %[[PTR_B:.*]] = ptrtoint ptr {{.*}} to i64
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// OGCG: %[[SUB:.*]] = sub i64 %[[PTR_A]], %[[PTR_B]]
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// OGCG-NOT: sdiv
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// OGCG: trunc i64 %[[SUB]] to i32
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return *(const void**)a - *(const void**)b;
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}
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unsigned long long test_ptr_diff(int *a, int* b) {
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// CIR-LABEL: test_ptr_diff
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// CIR: %[[D:.*]] = cir.ptr_diff {{.*}} : !cir.ptr<!s32i> -> !s64i
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// CIR: %[[U:.*]] = cir.cast integral %[[D]] : !s64i -> !u64i
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// CIR: cir.return {{.*}} : !u64i
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// LLVM-LABEL: define dso_local i64 @test_ptr_diff(
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// LLVM: %[[IA:.*]] = ptrtoint ptr %{{.*}} to i64
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// LLVM: %[[IB:.*]] = ptrtoint ptr %{{.*}} to i64
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// LLVM: %[[SUB:.*]] = sub i64 %[[IA]], %[[IB]]
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// LLVM: %[[Q:.*]] = sdiv exact i64 %[[SUB]], 4
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// LLVM: store i64 %[[Q]], ptr %[[RETADDR:.*]], align
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// LLVM: %[[RETLOAD:.*]] = load i64, ptr %[[RETADDR]], align
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// LLVM: ret i64 %[[RETLOAD]]
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// OGCG-LABEL: define dso_local i64 @test_ptr_diff(
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// OGCG: %[[IA:.*]] = ptrtoint ptr %{{.*}} to i64
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// OGCG: %[[IB:.*]] = ptrtoint ptr %{{.*}} to i64
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// OGCG: %[[SUB:.*]] = sub i64 %[[IA]], %[[IB]]
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// OGCG: %[[Q:.*]] = sdiv exact i64 %[[SUB]], 4
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// OGCG: ret i64 %[[Q]]
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return a - b;
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} |