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[CIR] Upstream local VectorType with 0 init elements #138346

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Merged
merged 2 commits into from
May 5, 2025
Merged

[CIR] Upstream local VectorType with 0 init elements #138346

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821d56d
[CIR] Upstream local VectorType with 0 init elemnts
AmrDeveloper May 2, 2025
b3d2a4e
Add Values before vec.create in the test
AmrDeveloper May 2, 2025
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11 changes: 6 additions & 5 deletions clang/lib/CIR/CodeGen/CIRGenExprScalar.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1684,11 +1684,6 @@ mlir::Value ScalarExprEmitter::VisitInitListExpr(InitListExpr *e) {
return {};
}

if (numInitElements == 0) {
cgf.cgm.errorNYI(e->getSourceRange(), "InitListExpr with 0 init elements");
return {};
}

if (e->getType()->isVectorType()) {
const auto vectorType =
mlir::cast<cir::VectorType>(cgf.convertType(e->getType()));
Expand All @@ -1710,6 +1705,12 @@ mlir::Value ScalarExprEmitter::VisitInitListExpr(InitListExpr *e) {
cgf.getLoc(e->getSourceRange()), vectorType, elements);
}

if (numInitElements == 0) {
cgf.cgm.errorNYI(e->getSourceRange(),
"InitListExpr Non VectorType with 0 init elements");
return {};
}

return Visit(e->getInit(0));
}

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9 changes: 9 additions & 0 deletions clang/test/CIR/CodeGen/vector-ext.cpp
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Expand Up @@ -61,6 +61,8 @@ void foo() {
vi4 f = { x, 5, 6, x + 1 };

vi4 g = { 5 };

vi4 h = {};
}

// CIR: %[[VEC_A:.*]] = cir.alloca !cir.vector<4 x !s32i>, !cir.ptr<!cir.vector<4 x !s32i>>, ["a"]
Expand All @@ -70,12 +72,15 @@ void foo() {
// CIR: %[[VEC_E:.*]] = cir.alloca !cir.vector<4 x !s32i>, !cir.ptr<!cir.vector<4 x !s32i>>, ["e", init]
// CIR: %[[VEC_F:.*]] = cir.alloca !cir.vector<4 x !s32i>, !cir.ptr<!cir.vector<4 x !s32i>>, ["f", init]
// CIR: %[[VEC_G:.*]] = cir.alloca !cir.vector<4 x !s32i>, !cir.ptr<!cir.vector<4 x !s32i>>, ["g", init]
// CIR: %[[VEC_H:.*]] = cir.alloca !cir.vector<4 x !s32i>, !cir.ptr<!cir.vector<4 x !s32i>>, ["h", init]
// CIR: %[[VEC_E_VAL:.*]] = cir.vec.create({{.*}}, {{.*}}, {{.*}}, {{.*}} : !s32i, !s32i, !s32i, !s32i) : !cir.vector<4 x !s32i>
// CIR: cir.store %[[VEC_E_VAL]], %[[VEC_E]] : !cir.vector<4 x !s32i>, !cir.ptr<!cir.vector<4 x !s32i>>
// CIR: %[[VEC_F_VAL:.*]] = cir.vec.create({{.*}}, {{.*}}, {{.*}}, {{.*}} : !s32i, !s32i, !s32i, !s32i) : !cir.vector<4 x !s32i>
// CIR: cir.store %[[VEC_F_VAL]], %[[VEC_F]] : !cir.vector<4 x !s32i>, !cir.ptr<!cir.vector<4 x !s32i>>
// CIR: %[[VEC_G_VAL:.*]] = cir.vec.create({{.*}}, {{.*}}, {{.*}}, {{.*}} : !s32i, !s32i, !s32i, !s32i) : !cir.vector<4 x !s32i>
// CIR: cir.store %[[VEC_G_VAL]], %[[VEC_G]] : !cir.vector<4 x !s32i>, !cir.ptr<!cir.vector<4 x !s32i>>
// CIR: %[[VEC_H_VAL:.*]] = cir.vec.create({{.*}}, {{.*}}, {{.*}}, {{.*}} : !s32i, !s32i, !s32i, !s32i) : !cir.vector<4 x !s32i>
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@erichkeane erichkeane May 2, 2025

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Does this init with zeros? Can you show the back-fill with zeros here? It would be nice for hte others to show it as well, but I see you didn't fill much of the values into the test above, which I would prefer we did.

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@AmrDeveloper AmrDeveloper May 2, 2025

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Yes, they init with zeros

%1 = cir.const #cir.int<0> : !s32i
%2 = cir.vec.create(%1, %1, %1, %1 : !s32i, !s32i, !s32i, !s32i) : !cir.vector<4 x !s32i>

It would be nice for hte others to show it as well,

I agree, I will update the test to include values

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@AmrDeveloper AmrDeveloper May 2, 2025

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Done 👍🏻

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@AmrDeveloper AmrDeveloper May 5, 2025

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If there are no other comments, I can merge it 🤔

// CIR: cir.store %[[VEC_H_VAL]], %[[VEC_H]] : !cir.vector<4 x !s32i>, !cir.ptr<!cir.vector<4 x !s32i>>

// LLVM: %[[VEC_A:.*]] = alloca <4 x i32>, i64 1, align 16
// LLVM: %[[VEC_B:.*]] = alloca <3 x i32>, i64 1, align 16
Expand All @@ -84,9 +89,11 @@ void foo() {
// LLVM: %[[VEC_E:.*]] = alloca <4 x i32>, i64 1, align 16
// LLVM: %[[VEC_F:.*]] = alloca <4 x i32>, i64 1, align 16
// LLVM: %[[VEC_G:.*]] = alloca <4 x i32>, i64 1, align 16
// LLVM: %[[VEC_H:.*]] = alloca <4 x i32>, i64 1, align 16
// LLVM: store <4 x i32> <i32 1, i32 2, i32 3, i32 4>, ptr %[[VEC_E]], align 16
// LLVM: store <4 x i32> {{.*}}, ptr %[[VEC_F]], align 16
// LLVM: store <4 x i32> <i32 5, i32 0, i32 0, i32 0>, ptr %[[VEC_G]], align 16
// LLVM: store <4 x i32> zeroinitializer, ptr %[[VEC_H]], align 16

// OGCG: %[[VEC_A:.*]] = alloca <4 x i32>, align 16
// OGCG: %[[VEC_B:.*]] = alloca <3 x i32>, align 16
Expand All @@ -95,9 +102,11 @@ void foo() {
// OGCG: %[[VEC_E:.*]] = alloca <4 x i32>, align 16
// OGCG: %[[VEC_F:.*]] = alloca <4 x i32>, align 16
// OGCG: %[[VEC_G:.*]] = alloca <4 x i32>, align 16
// OGCG: %[[VEC_H:.*]] = alloca <4 x i32>, align 16
// OGCG: store <4 x i32> <i32 1, i32 2, i32 3, i32 4>, ptr %[[VEC_E]], align 16
// OGCG: store <4 x i32> {{.*}}, ptr %[[VEC_F]], align 16
// OGCG: store <4 x i32> <i32 5, i32 0, i32 0, i32 0>, ptr %[[VEC_G]], align 16
// OGCG: store <4 x i32> zeroinitializer, ptr %[[VEC_H]], align 16

void foo2(vi4 p) {}

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9 changes: 9 additions & 0 deletions clang/test/CIR/CodeGen/vector.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -51,6 +51,8 @@ void foo() {
vi4 e = { x, 5, 6, x + 1 };

vi4 f = { 5 };

vi4 g = {};
}

// CIR: %[[VEC_A:.*]] = cir.alloca !cir.vector<4 x !s32i>, !cir.ptr<!cir.vector<4 x !s32i>>, ["a"]
Expand All @@ -59,32 +61,39 @@ void foo() {
// CIR: %[[VEC_D:.*]] = cir.alloca !cir.vector<4 x !s32i>, !cir.ptr<!cir.vector<4 x !s32i>>, ["d", init]
// CIR: %[[VEC_E:.*]] = cir.alloca !cir.vector<4 x !s32i>, !cir.ptr<!cir.vector<4 x !s32i>>, ["e", init]
// CIR: %[[VEC_F:.*]] = cir.alloca !cir.vector<4 x !s32i>, !cir.ptr<!cir.vector<4 x !s32i>>, ["f", init]
// CIR: %[[VEC_H:.*]] = cir.alloca !cir.vector<4 x !s32i>, !cir.ptr<!cir.vector<4 x !s32i>>, ["g", init]
// CIR: %[[VEC_D_VAL:.*]] = cir.vec.create({{.*}}, {{.*}}, {{.*}}, {{.*}} : !s32i, !s32i, !s32i, !s32i) : !cir.vector<4 x !s32i>
// CIR: cir.store %[[VEC_D_VAL]], %[[VEC_D]] : !cir.vector<4 x !s32i>, !cir.ptr<!cir.vector<4 x !s32i>>
// CIR: %[[VEC_E_VAL:.*]] = cir.vec.create({{.*}}, {{.*}}, {{.*}}, {{.*}} : !s32i, !s32i, !s32i, !s32i) : !cir.vector<4 x !s32i>
// CIR: cir.store %[[VEC_E_VAL]], %[[VEC_E]] : !cir.vector<4 x !s32i>, !cir.ptr<!cir.vector<4 x !s32i>>
// CIR: %[[VEC_F_VAL:.*]] = cir.vec.create({{.*}}, {{.*}}, {{.*}}, {{.*}} : !s32i, !s32i, !s32i, !s32i) : !cir.vector<4 x !s32i>
// CIR: cir.store %[[VEC_F_VAL]], %[[VEC_F]] : !cir.vector<4 x !s32i>, !cir.ptr<!cir.vector<4 x !s32i>>
// CIR: %[[VEC_G_VAL:.*]] = cir.vec.create({{.*}}, {{.*}}, {{.*}}, {{.*}} : !s32i, !s32i, !s32i, !s32i) : !cir.vector<4 x !s32i>
// CIR: cir.store %[[VEC_G_VAL]], %[[VEC_H]] : !cir.vector<4 x !s32i>, !cir.ptr<!cir.vector<4 x !s32i>>

// LLVM: %[[VEC_A:.*]] = alloca <4 x i32>, i64 1, align 16
// LLVM: %[[VEC_B:.*]] = alloca <2 x double>, i64 1, align 16
// LLVM: %[[VEC_C:.*]] = alloca <2 x i64>, i64 1, align 16
// LLVM: %[[VEC_D:.*]] = alloca <4 x i32>, i64 1, align 16
// LLVM: %[[VEC_E:.*]] = alloca <4 x i32>, i64 1, align 16
// LLVM: %[[VEC_F:.*]] = alloca <4 x i32>, i64 1, align 16
// LLVM: %[[VEC_G:.*]] = alloca <4 x i32>, i64 1, align 16
// LLVM: store <4 x i32> <i32 1, i32 2, i32 3, i32 4>, ptr %[[VEC_D]], align 16
// LLVM: store <4 x i32> {{.*}}, ptr %[[VEC_E]], align 16
// LLVM: store <4 x i32> <i32 5, i32 0, i32 0, i32 0>, ptr %[[VEC_F]], align 16
// LLVM: store <4 x i32> zeroinitializer, ptr %[[VEC_G]], align 16

// OGCG: %[[VEC_A:.*]] = alloca <4 x i32>, align 16
// OGCG: %[[VEC_B:.*]] = alloca <2 x double>, align 16
// OGCG: %[[VEC_C:.*]] = alloca <2 x i64>, align 16
// OGCG: %[[VEC_D:.*]] = alloca <4 x i32>, align 16
// OGCG: %[[VEC_E:.*]] = alloca <4 x i32>, align 16
// OGCG: %[[VEC_F:.*]] = alloca <4 x i32>, align 16
// OGCG: %[[VEC_G:.*]] = alloca <4 x i32>, align 16
// OGCG: store <4 x i32> <i32 1, i32 2, i32 3, i32 4>, ptr %[[VEC_D]], align 16
// OGCG: store <4 x i32> {{.*}}, ptr %[[VEC_E]], align 16
// OGCG: store <4 x i32> <i32 5, i32 0, i32 0, i32 0>, ptr %[[VEC_F]], align 16
// OGCG: store <4 x i32> zeroinitializer, ptr %[[VEC_G]], align 16

void foo2(vi4 p) {}

Expand Down
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