1 ; RUN: opt < %s -data-layout="e-p:32:32:32-p1:16:16:16-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-n8:16:32" -basicaa -newgvn -S -die | FileCheck %s
2 ; RUN: opt < %s -data-layout="E-p:32:32:32-p1:16:16:16-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:64:64-n32" -basicaa -newgvn -S -die | FileCheck %s
3 ; memset -> i16 forwarding.
4 define signext i16 @memset_to_i16_local(i16* %A) nounwind ssp {
6 %conv = bitcast i16* %A to i8*
7 tail call void @llvm.memset.p0i8.i64(i8* %conv, i8 1, i64 200, i1 false)
8 %arrayidx = getelementptr inbounds i16, i16* %A, i64 42
9 %tmp2 = load i16, i16* %arrayidx
11 ; CHECK-LABEL: @memset_to_i16_local(
16 @GCst = constant {i32, float, i32 } { i32 42, float 14., i32 97 }
17 @GCst_as1 = addrspace(1) constant {i32, float, i32 } { i32 42, float 14., i32 97 }
19 ; memset -> float forwarding.
20 define float @memcpy_to_float_local(float* %A) nounwind ssp {
22 %conv = bitcast float* %A to i8* ; <i8*> [#uses=1]
23 tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %conv, i8* bitcast ({i32, float, i32 }* @GCst to i8*), i64 12, i1 false)
24 %arrayidx = getelementptr inbounds float, float* %A, i64 1 ; <float*> [#uses=1]
25 %tmp2 = load float, float* %arrayidx ; <float> [#uses=1]
27 ; CHECK-LABEL: @memcpy_to_float_local(
29 ; CHECK: ret float 1.400000e+01
31 ; memcpy from address space 1
32 define float @memcpy_to_float_local_as1(float* %A) nounwind ssp {
34 %conv = bitcast float* %A to i8* ; <i8*> [#uses=1]
35 tail call void @llvm.memcpy.p0i8.p1i8.i64(i8* %conv, i8 addrspace(1)* bitcast ({i32, float, i32 } addrspace(1)* @GCst_as1 to i8 addrspace(1)*), i64 12, i1 false)
36 %arrayidx = getelementptr inbounds float, float* %A, i64 1 ; <float*> [#uses=1]
37 %tmp2 = load float, float* %arrayidx ; <float> [#uses=1]
39 ; CHECK-LABEL: @memcpy_to_float_local_as1(
41 ; CHECK: ret float 1.400000e+01
45 define i32 @memset_to_load() nounwind readnone {
47 %x = alloca [256 x i32], align 4 ; <[256 x i32]*> [#uses=2]
48 %tmp = bitcast [256 x i32]* %x to i8* ; <i8*> [#uses=1]
49 call void @llvm.memset.p0i8.i64(i8* align 4 %tmp, i8 0, i64 1024, i1 false)
50 %arraydecay = getelementptr inbounds [256 x i32], [256 x i32]* %x, i32 0, i32 0 ; <i32*>
51 %tmp1 = load i32, i32* %arraydecay ; <i32> [#uses=1]
53 ; CHECK-LABEL: @memset_to_load(
56 declare void @llvm.memset.p0i8.i64(i8* nocapture, i8, i64, i1) nounwind
58 declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i1) nounwind
59 declare void @llvm.memcpy.p0i8.p1i8.i64(i8* nocapture, i8 addrspace(1)* nocapture, i64, i1) nounwind