derek.holloway
7502bf64a4
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61 lines
3.4 KiB
LLVM
61 lines
3.4 KiB
LLVM
; RUN: opt -passes=lower-matrix-intrinsics -debug-only=lower-matrix-intrinsics -disable-output < %s 2>&1 | FileCheck %s --check-prefix=CHECK
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; REQUIRES: asserts
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define void @diag_3x3(ptr %in, ptr %out) {
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%inv = call <9 x float> @llvm.matrix.column.major.load(ptr %in, i64 3, i1 false, i32 3, i32 3)
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%diag = shufflevector <9 x float> %inv, <9 x float> poison, <3 x i32> <i32 0, i32 4, i32 8>
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store <3 x float> %diag, ptr %out
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ret void
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}
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; CHECK-LABEL: flattening a 3x3 matrix:
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; CHECK-NEXT: %{{.*}} = call <9 x float> @llvm.matrix.column.major.load.v9f32.i64(ptr %{{.*}}, i64 3, i1 false, i32 3, i32 3)
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; CHECK-NEXT: because we do not have a shape-aware lowering for its user:
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; CHECK-NEXT: %{{.*}} = shufflevector <9 x float> %{{.*}}, <9 x float> poison, <3 x i32> <i32 0, i32 4, i32 8>
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define void @reshape(ptr %in, ptr %out) {
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entry:
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%0 = load <4 x double>, ptr %in, align 8
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%1 = tail call <4 x double> @llvm.matrix.transpose.v4f64(<4 x double> %0, i32 4, i32 1)
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%2 = tail call <4 x double> @llvm.matrix.transpose.v4f64(<4 x double> %1, i32 1, i32 4)
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%3 = tail call <4 x double> @llvm.matrix.transpose.v4f64(<4 x double> %2, i32 2, i32 2)
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%4 = tail call <4 x double> @llvm.matrix.transpose.v4f64(<4 x double> %3, i32 2, i32 2)
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%5 = tail call <4 x double> @llvm.matrix.transpose.v4f64(<4 x double> %4, i32 2, i32 2)
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store <4 x double> %5, ptr %out, align 8
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ret void
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}
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; CHECK-LABEL: matrix reshape from 4x1 to 2x2 using at least 2 shuffles on behalf of:
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; CHECK-NEXT: %{{.*}} = load <4 x double>, ptr %{{.*}}, align 8
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define void @multiply_ntt(ptr %A, ptr %B, ptr %C, ptr %R) {
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entry:
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%a = load <6 x double>, ptr %A, align 16
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%b = load <6 x double>, ptr %B, align 16
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%c = load <8 x double>, ptr %C, align 16
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%b_t = call <6 x double> @llvm.matrix.transpose.v6f64.v6f64(<6 x double> %b, i32 2, i32 3)
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%c_t = call <8 x double> @llvm.matrix.transpose.v8f64.v8f64(<8 x double> %c, i32 4, i32 2)
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%m1 = call <12 x double> @llvm.matrix.multiply.v12f64.v6f64.v8f64(<6 x double> %b_t, <8 x double> %c_t, i32 3, i32 2, i32 4)
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%m2 = call <8 x double> @llvm.matrix.multiply.v8f64.v6f64.v12f64(<6 x double> %a, <12 x double> %m1, i32 2, i32 3, i32 4)
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store <8 x double> %m2, ptr %R, align 16
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ret void
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}
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; CHECK-LABEL: flattening a 2x3 matrix:
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; CHECK-NEXT: %{{.*}} = load <6 x double>, ptr %{{.*}}, align 16
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; CHECK-NEXT: because we do not have a shape-aware lowering for its user:
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; CHECK-NEXT: %{{.*}} = shufflevector <6 x double> %{{.*}}, <6 x double> poison, <2 x i32> <i32 4, i32 5>
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; CHECK-LABEL: flattening a 4x3 matrix:
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; CHECK-NEXT: %{{.*}} = call <12 x double> @llvm.matrix.multiply.v12f64.v8f64.v6f64(<8 x double> %{{.*}}, <6 x double> %{{.*}}, i32 4, i32 2, i32 3)
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; CHECK-NEXT: because we do not have a shape-aware lowering for its user:
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; CHECK-NEXT: %{{.*}} = shufflevector <12 x double> %{{.*}}, <12 x double> poison, <4 x i32> <i32 8, i32 9, i32 10, i32 11>
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define void @redundant_transpose_of_shuffle(<4 x float> %m, ptr %dst) {
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entry:
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%shuffle = shufflevector <4 x float> %m, <4 x float> zeroinitializer, <4 x i32> zeroinitializer
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%t = tail call <4 x float> @llvm.matrix.transpose.v3f32(<4 x float> %shuffle, i32 1, i32 4)
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store <4 x float> %t, ptr %dst, align 4
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ret void
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}
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; CHECK-LABEL: splitting a 4x1 matrix with 1 shuffles beacuse we do not have a shape-aware lowering for its def:
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; CHECK-NEXT: %{{.*}} = shufflevector <4 x float> %{{.*}}, <4 x float> zeroinitializer, <4 x i32> zeroinitializer |