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190baf6fef
SROA wants to convert any types of equivalent widths but it's not possible to convert vectors of pointers to an integer scalar with a single cast. As a workaround we add a bitcast to the corresponding int ptr type first. This type of cast used to be an edge case but has become common with SLP vectorization. Fixes PR17271. llvm-svn: 191143
54 lines
1.4 KiB
LLVM
54 lines
1.4 KiB
LLVM
; RUN: opt < %s -sroa -S | FileCheck %s
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target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-n8:16:32:64"
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define <4 x i64> @vector_ptrtoint({<2 x i32*>, <2 x i32*>} %x) {
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; CHECK-LABEL: @vector_ptrtoint
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%a = alloca {<2 x i32*>, <2 x i32*>}
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; CHECK-NOT: alloca
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store {<2 x i32*>, <2 x i32*>} %x, {<2 x i32*>, <2 x i32*>}* %a
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; CHECK-NOT: store
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%cast = bitcast {<2 x i32*>, <2 x i32*>}* %a to <4 x i64>*
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%vec = load <4 x i64>* %cast
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; CHECK-NOT: load
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; CHECK: ptrtoint
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ret <4 x i64> %vec
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}
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define <4 x i32*> @vector_inttoptr({<2 x i64>, <2 x i64>} %x) {
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; CHECK-LABEL: @vector_inttoptr
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%a = alloca {<2 x i64>, <2 x i64>}
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; CHECK-NOT: alloca
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store {<2 x i64>, <2 x i64>} %x, {<2 x i64>, <2 x i64>}* %a
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; CHECK-NOT: store
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%cast = bitcast {<2 x i64>, <2 x i64>}* %a to <4 x i32*>*
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%vec = load <4 x i32*>* %cast
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; CHECK-NOT: load
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; CHECK: inttoptr
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ret <4 x i32*> %vec
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}
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define <2 x i64> @vector_ptrtointbitcast({<1 x i32*>, <1 x i32*>} %x) {
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; CHECK-LABEL: @vector_ptrtointbitcast
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%a = alloca {<1 x i32*>, <1 x i32*>}
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; CHECK-NOT: alloca
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store {<1 x i32*>, <1 x i32*>} %x, {<1 x i32*>, <1 x i32*>}* %a
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; CHECK-NOT: store
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%cast = bitcast {<1 x i32*>, <1 x i32*>}* %a to <2 x i64>*
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%vec = load <2 x i64>* %cast
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; CHECK-NOT: load
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; CHECK: ptrtoint
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; CHECK: bitcast
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; CHECK: ptrtoint
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; CHECK: bitcast
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ret <2 x i64> %vec
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}
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