0f6c18e8c6
This patch implements a small region pass that saves the context's state. The patch is now used in the default pipeline to save the context state instead of the hard-coded call to Context::save(). The concept behind this is that the passes themselves should not have to do the actual saving/restoring of the IR state, because that would make it challenging to reorder them in the pipeline. Having separate save/restore passes makes the transformation passes more composable as parts of arbitrary pipelines.
33 lines
1.3 KiB
LLVM
33 lines
1.3 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
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; RUN: opt -passes=sandbox-vectorizer -sbvec-vec-reg-bits=1024 -sbvec-allow-non-pow2 -sbvec-passes="seed-collection<tr-save,bottom-up-vec,tr-accept>" %s -S | FileCheck %s
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declare void @foo()
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define void @slice_seeds(ptr %ptr, float %val) {
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; CHECK-LABEL: define void @slice_seeds(
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; CHECK-SAME: ptr [[PTR:%.*]], float [[VAL:%.*]]) {
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; CHECK-NEXT: [[PTR0:%.*]] = getelementptr float, ptr [[PTR]], i32 0
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; CHECK-NEXT: [[PTR2:%.*]] = getelementptr float, ptr [[PTR]], i32 2
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; CHECK-NEXT: [[LD2:%.*]] = load float, ptr [[PTR2]], align 4
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; CHECK-NEXT: store float [[LD2]], ptr [[PTR2]], align 4
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; CHECK-NEXT: call void @foo()
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; CHECK-NEXT: [[VECL:%.*]] = load <2 x float>, ptr [[PTR0]], align 4
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; CHECK-NEXT: store <2 x float> [[VECL]], ptr [[PTR0]], align 4
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; CHECK-NEXT: ret void
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;
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%ptr0 = getelementptr float, ptr %ptr, i32 0
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%ptr1 = getelementptr float, ptr %ptr, i32 1
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%ptr2 = getelementptr float, ptr %ptr, i32 2
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%ld2 = load float, ptr %ptr2
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store float %ld2, ptr %ptr2
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; This call blocks scheduling of all 3 stores.
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call void @foo()
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%ld0 = load float, ptr %ptr0
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%ld1 = load float, ptr %ptr1
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store float %ld0, ptr %ptr0
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store float %ld1, ptr %ptr1
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ret void
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}
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