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https://github.com/c64scene-ar/llvm-6502.git
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21ef70ed4f
When the GEP index is a vector of pointers, the code that calculated the size of the element started from the vector type, and not the contained pointer type. As a result, instead of looking at the data element pointed by the vector, this code used the size of the vector. This works for 32bit members (on 32bit systems), but not for other types. Added code to peel the vector type and added a test. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151626 91177308-0d34-0410-b5e6-96231b3b80d8
89 lines
2.2 KiB
LLVM
89 lines
2.2 KiB
LLVM
; RUN: llc < %s -march=x86 -mcpu=corei7-avx | FileCheck %s
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; RUN: opt -instsimplify %s -disable-output
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;CHECK: AGEP0:
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define <4 x i32*> @AGEP0(i32* %ptr) nounwind {
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entry:
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%vecinit.i = insertelement <4 x i32*> undef, i32* %ptr, i32 0
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%vecinit2.i = insertelement <4 x i32*> %vecinit.i, i32* %ptr, i32 1
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%vecinit4.i = insertelement <4 x i32*> %vecinit2.i, i32* %ptr, i32 2
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%vecinit6.i = insertelement <4 x i32*> %vecinit4.i, i32* %ptr, i32 3
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;CHECK: pslld $2
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;CHECK: padd
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%A2 = getelementptr <4 x i32*> %vecinit6.i, <4 x i32> <i32 1, i32 2, i32 3, i32 4>
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;CHECK: pslld $2
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;CHECK: padd
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%A3 = getelementptr <4 x i32*> %A2, <4 x i32> <i32 10, i32 14, i32 19, i32 233>
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ret <4 x i32*> %A3
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;CHECK: ret
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}
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;CHECK: AGEP1:
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define i32 @AGEP1(<4 x i32*> %param) nounwind {
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entry:
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;CHECK: pslld $2
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;CHECK: padd
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%A2 = getelementptr <4 x i32*> %param, <4 x i32> <i32 1, i32 2, i32 3, i32 4>
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%k = extractelement <4 x i32*> %A2, i32 3
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%v = load i32* %k
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ret i32 %v
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;CHECK: ret
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}
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;CHECK: AGEP2:
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define i32 @AGEP2(<4 x i32*> %param, <4 x i32> %off) nounwind {
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entry:
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;CHECK: pslld $2
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;CHECK: padd
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%A2 = getelementptr <4 x i32*> %param, <4 x i32> %off
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%k = extractelement <4 x i32*> %A2, i32 3
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%v = load i32* %k
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ret i32 %v
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;CHECK: ret
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}
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;CHECK: AGEP3:
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define <4 x i32*> @AGEP3(<4 x i32*> %param, <4 x i32> %off) nounwind {
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entry:
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;CHECK: pslld $2
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;CHECK: padd
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%A2 = getelementptr <4 x i32*> %param, <4 x i32> %off
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%v = alloca i32
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%k = insertelement <4 x i32*> %A2, i32* %v, i32 3
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ret <4 x i32*> %k
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;CHECK: ret
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}
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;CHECK: AGEP4:
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define <4 x i16*> @AGEP4(<4 x i16*> %param, <4 x i32> %off) nounwind {
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entry:
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; Multiply offset by two (add it to itself).
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;CHECK: padd
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; add the base to the offset
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;CHECK: padd
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%A = getelementptr <4 x i16*> %param, <4 x i32> %off
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ret <4 x i16*> %A
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;CHECK: ret
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}
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;CHECK: AGEP5:
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define <4 x i8*> @AGEP5(<4 x i8*> %param, <4 x i8> %off) nounwind {
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entry:
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;CHECK: paddd
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%A = getelementptr <4 x i8*> %param, <4 x i8> %off
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ret <4 x i8*> %A
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;CHECK: ret
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}
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; The size of each element is 1 byte. No need to multiply by element size.
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;CHECK: AGEP6:
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define <4 x i8*> @AGEP6(<4 x i8*> %param, <4 x i32> %off) nounwind {
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entry:
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;CHECK-NOT: pslld
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%A = getelementptr <4 x i8*> %param, <4 x i32> %off
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ret <4 x i8*> %A
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;CHECK: ret
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}
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