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[CIR] Add support the ChooseExpr for scalar (#171882)

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Add support the ChooseExpr for scalar expr
This commit is contained in:
Amr Hesham
2025-12-12 17:42:30 +01:00
committed by GitHub
parent 4dbd16bb62
commit dbd0122cf5
2 changed files with 45 additions and 2 deletions
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3
clang/lib/CIR/CodeGen/CIRGenExprScalar.cpp
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@@ -1352,8 +1352,7 @@ public:
}
mlir::Value VisitChooseExpr(ChooseExpr *e) {
cgf.cgm.errorNYI(e->getSourceRange(), "ScalarExprEmitter: choose");
return {};
return Visit(e->getChosenSubExpr());
}
mlir::Value VisitObjCStringLiteral(const ObjCStringLiteral *e) {

44
clang/test/CIR/CodeGen/choose-expr.cpp Normal file
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@@ -0,0 +1,44 @@
// RUN: %clang_cc1 -std=c++20 -triple x86_64-unknown-linux-gnu -Wno-unused-value -fclangir -emit-cir %s -o %t.cir
// RUN: FileCheck --input-file=%t.cir %s -check-prefix=CIR
// RUN: %clang_cc1 -std=c++20 -triple x86_64-unknown-linux-gnu -Wno-unused-value -fclangir -emit-llvm %s -o %t-cir.ll
// RUN: FileCheck --input-file=%t-cir.ll %s -check-prefix=LLVM
// RUN: %clang_cc1 -std=c++20 -triple x86_64-unknown-linux-gnu -Wno-unused-value -emit-llvm %s -o %t.ll
// RUN: FileCheck --input-file=%t.ll %s -check-prefix=OGCG
void choose_expr() {
int a = __builtin_choose_expr(1, 2, 3);
}
// CIR: %[[A_ADDR:.*]] = cir.alloca !s32i, !cir.ptr<!s32i>, ["a", init]
// CIR: %[[CONST_2:.*]] = cir.const #cir.int<2> : !s32i
// CIR: cir.store {{.*}} %[[CONST_2]], %[[A_ADDR]] : !s32i, !cir.ptr<!s32i>
// LLVM: %[[A_ADDR:.*]] = alloca i32, i64 1, align 4
// LLVM: store i32 2, ptr %[[A_ADDR]], align 4
// OGCG: %[[A_ADDR:.*]] = alloca i32, align 4
// OGCG: store i32 2, ptr %[[A_ADDR]], align 4
void choose_expr_non_constant() {
int a;
int b;
int c = __builtin_choose_expr(1, a, b);
}
// CIR: %[[A_ADDR:.*]] = cir.alloca !s32i, !cir.ptr<!s32i>, ["a"]
// CIR: %[[B_ADDR:.*]] = cir.alloca !s32i, !cir.ptr<!s32i>, ["b"]
// CIR: %[[C_ADDR:.*]] = cir.alloca !s32i, !cir.ptr<!s32i>, ["c", init]
// CIR: %[[TMP_A:.*]] = cir.load {{.*}} %[[A_ADDR]] : !cir.ptr<!s32i>, !s32i
// CIR: cir.store {{.*}} %[[TMP_A]], %[[C_ADDR]] : !s32i, !cir.ptr<!s32i>
// LLVM: %[[A_ADDR:.*]] = alloca i32, i64 1, align 4
// LLVM: %[[B_ADDR:.*]] = alloca i32, i64 1, align 4
// LLVM: %[[C_ADDR:.*]] = alloca i32, i64 1, align 4
// LLVM: %[[TMP_A:.*]] = load i32, ptr %[[A_ADDR]], align 4
// LLVM: store i32 %[[TMP_A]], ptr %[[C_ADDR]], align 4
// OGCG: %[[A_ADDR:.*]] = alloca i32, align 4
// OGCG: %[[B_ADDR:.*]] = alloca i32, align 4
// OGCG: %[[C_ADDR:.*]] = alloca i32, align 4
// OGCG: %[[TMP_A:.*]] = load i32, ptr %[[A_ADDR]], align 4
// OGCG: store i32 %[[TMP_A]], ptr %[[C_ADDR]], align 4