llvm/test/Transforms/InstCombine/gep-addrspace.ll
Eli Bendersky 1fcd561c73 Fix PR19270 - type mismatch caused by invalid optimization.
Patch by Jingyue Wu.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205547 91177308-0d34-0410-b5e6-96231b3b80d8
2014-04-03 17:51:58 +00:00

35 lines
1.5 KiB
LLVM

; RUN: opt < %s -instcombine -S | FileCheck %s
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
target triple = "x86_64-pc-win32"
%myStruct = type { float, [3 x float], [4 x float], i32 }
; make sure that we are not crashing when creating an illegal type
define void @func(%myStruct addrspace(1)* nocapture %p) nounwind {
ST:
%A = getelementptr inbounds %myStruct addrspace(1)* %p, i64 0
%B = addrspacecast %myStruct addrspace(1)* %A to %myStruct*
%C = getelementptr inbounds %myStruct* %B, i32 0, i32 1
%D = getelementptr inbounds [3 x float]* %C, i32 0, i32 2
%E = load float* %D, align 4
%F = fsub float %E, undef
ret void
}
@array = internal addrspace(3) global [256 x float] zeroinitializer, align 4
@scalar = internal addrspace(3) global float 0.000000e+00, align 4
define void @keep_necessary_addrspacecast(i64 %i, float** %out0, float** %out1) {
entry:
; CHECK-LABEL: @keep_necessary_addrspacecast
%0 = getelementptr [256 x float]* addrspacecast ([256 x float] addrspace(3)* @array to [256 x float]*), i64 0, i64 %i
; CHECK: addrspacecast float addrspace(3)* %{{[0-9]+}} to float*
%1 = getelementptr [0 x float]* addrspacecast (float addrspace(3)* @scalar to [0 x float]*), i64 0, i64 %i
; CHECK: addrspacecast float addrspace(3)* %{{[0-9]+}} to float*
store float* %0, float** %out0, align 4
store float* %1, float** %out1, align 4
ret void
}