7d71164855
We have been using the default names for global symbols to this point. This change introduces proper name mangling for functions. This requires introducing a CXXABI class in the CIRGenModule. Because only target independent name mangling is handled in this patch, the CXXABI class does not require a target-specific implementation. The general mechanism for selecting an implementation is introduced here, but the actual target-specific subclasses are deferred until needed.
55 lines
1.8 KiB
C++
55 lines
1.8 KiB
C++
// RUN: %clang_cc1 -std=c++20 -triple x86_64-unknown-linux-gnu -fclangir -emit-llvm %s -o - 2>&1 | FileCheck %s
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int f1() {
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int i;
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return i;
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}
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// CHECK: define{{.*}} i32 @_Z2f1v() {
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// CHECK: %[[RV:.*]] = alloca i32, i64 1, align 4
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// CHECK: %[[I_PTR:.*]] = alloca i32, i64 1, align 4
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// CHECK: %[[I:.*]] = load i32, ptr %[[I_PTR]], align 4
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// CHECK: store i32 %[[I]], ptr %[[RV]], align 4
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// CHECK: %[[R:.*]] = load i32, ptr %[[RV]], align 4
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// CHECK: ret i32 %[[R]]
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int f2() {
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const int i = 2;
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return i;
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}
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// CHECK: define{{.*}} i32 @_Z2f2v() {
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// CHECK: %[[RV:.*]] = alloca i32, i64 1, align 4
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// CHECK: %[[I_PTR:.*]] = alloca i32, i64 1, align 4
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// CHECK: store i32 2, ptr %[[I_PTR]], align 4
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// CHECK: %[[I:.*]] = load i32, ptr %[[I_PTR]], align 4
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// CHECK: store i32 %[[I]], ptr %[[RV]], align 4
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// CHECK: %[[R:.*]] = load i32, ptr %[[RV]], align 4
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// CHECK: ret i32 %[[R]]
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int f3(int i) {
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return i;
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}
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// CHECK: define{{.*}} i32 @_Z2f3i(i32 %[[ARG:.*]])
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// CHECK: %[[ARG_ALLOCA:.*]] = alloca i32, i64 1, align 4
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// CHECK: %[[RV:.*]] = alloca i32, i64 1, align 4
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// CHECK: store i32 %[[ARG]], ptr %[[ARG_ALLOCA]], align 4
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// CHECK: %[[ARG_VAL:.*]] = load i32, ptr %[[ARG_ALLOCA]], align 4
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// CHECK: store i32 %[[ARG_VAL]], ptr %[[RV]], align 4
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// CHECK: %[[R:.*]] = load i32, ptr %[[RV]], align 4
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// CHECK: ret i32 %[[R]]
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int f4(const int i) {
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return i;
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}
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// CHECK: define{{.*}} i32 @_Z2f4i(i32 %[[ARG:.*]])
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// CHECK: %[[ARG_ALLOCA:.*]] = alloca i32, i64 1, align 4
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// CHECK: %[[RV:.*]] = alloca i32, i64 1, align 4
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// CHECK: store i32 %[[ARG]], ptr %[[ARG_ALLOCA]], align 4
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// CHECK: %[[ARG_VAL:.*]] = load i32, ptr %[[ARG_ALLOCA]], align 4
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// CHECK: store i32 %[[ARG_VAL]], ptr %[[RV]], align 4
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// CHECK: %[[R:.*]] = load i32, ptr %[[RV]], align 4
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// CHECK: ret i32 %[[R]]
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