1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 4 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-f64:32:64-n8:16:32" -passes=newgvn,dce -S | FileCheck %s 3; 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" -passes=newgvn,dce -S | FileCheck %s 4; memset -> i16 forwarding. 5define signext i16 @memset_to_i16_local(ptr %A) nounwind ssp { 6; CHECK-LABEL: define signext i16 @memset_to_i16_local( 7; CHECK-SAME: ptr [[A:%.*]]) #[[ATTR0:[0-9]+]] { 8; CHECK-NEXT: entry: 9; CHECK-NEXT: tail call void @llvm.memset.p0.i64(ptr [[A]], i8 1, i64 200, i1 false) 10; CHECK-NEXT: ret i16 257 11; 12entry: 13 tail call void @llvm.memset.p0.i64(ptr %A, i8 1, i64 200, i1 false) 14 %arrayidx = getelementptr inbounds i16, ptr %A, i64 42 15 %tmp2 = load i16, ptr %arrayidx 16 ret i16 %tmp2 17} 18 19@GCst = constant {i32, float, i32 } { i32 42, float 14., i32 97 } 20@GCst_as1 = addrspace(1) constant {i32, float, i32 } { i32 42, float 14., i32 97 } 21 22; memset -> float forwarding. 23define float @memcpy_to_float_local(ptr %A) nounwind ssp { 24; CHECK-LABEL: define float @memcpy_to_float_local( 25; CHECK-SAME: ptr [[A:%.*]]) #[[ATTR0]] { 26; CHECK-NEXT: entry: 27; CHECK-NEXT: tail call void @llvm.memcpy.p0.p0.i64(ptr [[A]], ptr @GCst, i64 12, i1 false) 28; CHECK-NEXT: ret float 1.400000e+01 29; 30entry: 31 tail call void @llvm.memcpy.p0.p0.i64(ptr %A, ptr @GCst, i64 12, i1 false) 32 %arrayidx = getelementptr inbounds float, ptr %A, i64 1 ; <ptr> [#uses=1] 33 %tmp2 = load float, ptr %arrayidx ; <float> [#uses=1] 34 ret float %tmp2 35} 36; memcpy from address space 1 37define float @memcpy_to_float_local_as1(ptr %A) nounwind ssp { 38; CHECK-LABEL: define float @memcpy_to_float_local_as1( 39; CHECK-SAME: ptr [[A:%.*]]) #[[ATTR0]] { 40; CHECK-NEXT: entry: 41; CHECK-NEXT: tail call void @llvm.memcpy.p0.p1.i64(ptr [[A]], ptr addrspace(1) @GCst_as1, i64 12, i1 false) 42; CHECK-NEXT: ret float 1.400000e+01 43; 44entry: 45 tail call void @llvm.memcpy.p0.p1.i64(ptr %A, ptr addrspace(1) @GCst_as1, i64 12, i1 false) 46 %arrayidx = getelementptr inbounds float, ptr %A, i64 1 ; <ptr> [#uses=1] 47 %tmp2 = load float, ptr %arrayidx ; <float> [#uses=1] 48 ret float %tmp2 49} 50 51; PR6642 52define i32 @memset_to_load() nounwind readnone { 53; CHECK-LABEL: define i32 @memset_to_load( 54; CHECK-SAME: ) #[[ATTR1:[0-9]+]] { 55; CHECK-NEXT: entry: 56; CHECK-NEXT: [[X:%.*]] = alloca [256 x i32], align 4 57; CHECK-NEXT: call void @llvm.memset.p0.i64(ptr align 4 [[X]], i8 0, i64 1024, i1 false) 58; CHECK-NEXT: ret i32 0 59; 60entry: 61 %x = alloca [256 x i32], align 4 ; <ptr> [#uses=2] 62 call void @llvm.memset.p0.i64(ptr align 4 %x, i8 0, i64 1024, i1 false) 63 %arraydecay = getelementptr inbounds [256 x i32], ptr %x, i32 0, i32 0 ; <ptr> 64 %tmp1 = load i32, ptr %arraydecay ; <i32> [#uses=1] 65 ret i32 %tmp1 66} 67declare void @llvm.memset.p0.i64(ptr nocapture, i8, i64, i1) nounwind 68 69declare void @llvm.memcpy.p0.p0.i64(ptr nocapture, ptr nocapture, i64, i1) nounwind 70declare void @llvm.memcpy.p0.p1.i64(ptr nocapture, ptr addrspace(1) nocapture, i64, i1) nounwind 71