| Matt Arsenault | a9e95ab | 2013-11-15 05:45:08 +0000 | [diff] [blame] | 1 | ; RUN: opt -instcombine -S < %s | FileCheck %s |
| 2 | |
| 3 | target datalayout = "e-p:64:64:64-p1:32:32:32-p2:16:16:16-n8:16:32:64" |
| 4 | |
| Matt Arsenault | bbf18c6 | 2013-12-07 02:58:45 +0000 | [diff] [blame^] | 5 | |
| 6 | declare void @llvm.memcpy.p0i8.p0i8.i32(i8*, i8*, i32, i32, i1) nounwind |
| 7 | declare void @llvm.memcpy.p0i8.p1i8.i32(i8*, i8 addrspace(1)*, i32, i32, i1) nounwind |
| 8 | declare void @llvm.memcpy.p0i8.p2i8.i32(i8*, i8 addrspace(2)*, i32, i32, i1) nounwind |
| 9 | |
| 10 | |
| Matt Arsenault | a9e95ab | 2013-11-15 05:45:08 +0000 | [diff] [blame] | 11 | define i32* @combine_redundant_addrspacecast(i32 addrspace(1)* %x) nounwind { |
| 12 | ; CHECK-LABEL: @combine_redundant_addrspacecast( |
| 13 | ; CHECK: addrspacecast i32 addrspace(1)* %x to i32* |
| 14 | ; CHECK-NEXT: ret |
| 15 | %y = addrspacecast i32 addrspace(1)* %x to i32 addrspace(3)* |
| 16 | %z = addrspacecast i32 addrspace(3)* %y to i32* |
| 17 | ret i32* %z |
| 18 | } |
| 19 | |
| 20 | define <4 x i32*> @combine_redundant_addrspacecast_vector(<4 x i32 addrspace(1)*> %x) nounwind { |
| 21 | ; CHECK-LABEL: @combine_redundant_addrspacecast_vector( |
| 22 | ; CHECK: addrspacecast <4 x i32 addrspace(1)*> %x to <4 x i32*> |
| 23 | ; CHECK-NEXT: ret |
| 24 | %y = addrspacecast <4 x i32 addrspace(1)*> %x to <4 x i32 addrspace(3)*> |
| 25 | %z = addrspacecast <4 x i32 addrspace(3)*> %y to <4 x i32*> |
| 26 | ret <4 x i32*> %z |
| 27 | } |
| 28 | |
| 29 | define float* @combine_redundant_addrspacecast_types(i32 addrspace(1)* %x) nounwind { |
| 30 | ; CHECK-LABEL: @combine_redundant_addrspacecast_types( |
| 31 | ; CHECK: addrspacecast i32 addrspace(1)* %x to float* |
| 32 | ; CHECK-NEXT: ret |
| 33 | %y = addrspacecast i32 addrspace(1)* %x to i32 addrspace(3)* |
| 34 | %z = addrspacecast i32 addrspace(3)* %y to float* |
| 35 | ret float* %z |
| 36 | } |
| 37 | |
| Matt Arsenault | bbf18c6 | 2013-12-07 02:58:45 +0000 | [diff] [blame^] | 38 | @const_array = addrspace(2) constant [60 x i8] [i8 2, i8 9, i8 4, i8 22, i8 2, i8 9, i8 4, i8 22, i8 2, i8 9, i8 4, i8 22, |
| 39 | i8 2, i8 9, i8 4, i8 22, i8 2, i8 9, i8 4, i8 22, i8 2, i8 9, i8 4, i8 22, |
| 40 | i8 2, i8 9, i8 4, i8 22, i8 2, i8 9, i8 4, i8 22, i8 2, i8 9, i8 4, i8 22, |
| 41 | i8 2, i8 9, i8 4, i8 22, i8 2, i8 9, i8 4, i8 22, i8 2, i8 9, i8 4, i8 22, |
| 42 | i8 2, i8 9, i8 4, i8 22, i8 2, i8 9, i8 4, i8 22, i8 2, i8 9, i8 4, i8 22 ] |
| 43 | |
| 44 | declare void @foo(i8*) nounwind |
| 45 | |
| 46 | ; A copy from a constant addrspacecast'ed global |
| 47 | ; CHECK-LABEL: @memcpy_addrspacecast( |
| 48 | ; CHECK-NOT: call void @llvm.memcpy |
| 49 | define i32 @memcpy_addrspacecast() nounwind { |
| 50 | entry: |
| 51 | %alloca = alloca i8, i32 48 |
| 52 | call void @llvm.memcpy.p0i8.p1i8.i32(i8* %alloca, i8 addrspace(1)* addrspacecast (i8 addrspace(2)* getelementptr inbounds ([60 x i8] addrspace(2)* @const_array, i16 0, i16 4) to i8 addrspace(1)*), i32 48, i32 4, i1 false) nounwind |
| 53 | br label %loop.body |
| 54 | |
| 55 | loop.body: |
| 56 | %i = phi i32 [ 0, %entry ], [ %i.inc, %loop.body ] |
| 57 | %sum = phi i32 [ 0, %entry ], [ %sum.inc, %loop.body] |
| 58 | %ptr = getelementptr i8* %alloca, i32 %i |
| 59 | %load = load i8* %ptr |
| 60 | %ext = zext i8 %load to i32 |
| 61 | %sum.inc = add i32 %sum, %ext |
| 62 | %i.inc = add i32 %i, 1 |
| 63 | %cmp = icmp ne i32 %i, 48 |
| 64 | br i1 %cmp, label %loop.body, label %end |
| 65 | |
| 66 | end: |
| 67 | ret i32 %sum.inc |
| 68 | } |
| 69 | |