diff options
Diffstat (limited to 'llvm/test/Transforms/DeadStoreElimination/OverwriteStoreBegin.ll')
| -rw-r--r-- | llvm/test/Transforms/DeadStoreElimination/OverwriteStoreBegin.ll | 83 |
1 files changed, 69 insertions, 14 deletions
diff --git a/llvm/test/Transforms/DeadStoreElimination/OverwriteStoreBegin.ll b/llvm/test/Transforms/DeadStoreElimination/OverwriteStoreBegin.ll index 843436fd7da..69615f52bbc 100644 --- a/llvm/test/Transforms/DeadStoreElimination/OverwriteStoreBegin.ll +++ b/llvm/test/Transforms/DeadStoreElimination/OverwriteStoreBegin.ll @@ -1,12 +1,20 @@ +; NOTE: Assertions have been autogenerated by utils/update_test_checks.py ; RUN: opt < %s -basicaa -dse -S | FileCheck %s define void @write4to7(i32* nocapture %p) { ; CHECK-LABEL: @write4to7( +; CHECK-NEXT: entry: +; CHECK-NEXT: [[ARRAYIDX0:%.*]] = getelementptr inbounds i32, i32* [[P:%.*]], i64 1 +; CHECK-NEXT: [[P3:%.*]] = bitcast i32* [[ARRAYIDX0]] to i8* +; CHECK-NEXT: [[TMP0:%.*]] = getelementptr inbounds i8, i8* [[P3]], i64 4 +; CHECK-NEXT: call void @llvm.memset.p0i8.i64(i8* align 4 [[TMP0]], i8 0, i64 24, i1 false) +; CHECK-NEXT: [[ARRAYIDX1:%.*]] = getelementptr inbounds i32, i32* [[P]], i64 1 +; CHECK-NEXT: store i32 1, i32* [[ARRAYIDX1]], align 4 +; CHECK-NEXT: ret void +; entry: %arrayidx0 = getelementptr inbounds i32, i32* %p, i64 1 %p3 = bitcast i32* %arrayidx0 to i8* -; CHECK: [[GEP:%[0-9]+]] = getelementptr inbounds i8, i8* %p3, i64 4 -; CHECK: call void @llvm.memset.p0i8.i64(i8* align 4 [[GEP]], i8 0, i64 24, i1 false) call void @llvm.memset.p0i8.i64(i8* align 4 %p3, i8 0, i64 28, i1 false) %arrayidx1 = getelementptr inbounds i32, i32* %p, i64 1 store i32 1, i32* %arrayidx1, align 4 @@ -15,10 +23,15 @@ entry: define void @write0to3(i32* nocapture %p) { ; CHECK-LABEL: @write0to3( +; CHECK-NEXT: entry: +; CHECK-NEXT: [[P3:%.*]] = bitcast i32* [[P:%.*]] to i8* +; CHECK-NEXT: [[TMP0:%.*]] = getelementptr inbounds i8, i8* [[P3]], i64 4 +; CHECK-NEXT: call void @llvm.memset.p0i8.i64(i8* align 4 [[TMP0]], i8 0, i64 24, i1 false) +; CHECK-NEXT: store i32 1, i32* [[P]], align 4 +; CHECK-NEXT: ret void +; entry: %p3 = bitcast i32* %p to i8* -; CHECK: [[GEP:%[0-9]+]] = getelementptr inbounds i8, i8* %p3, i64 4 -; CHECK: call void @llvm.memset.p0i8.i64(i8* align 4 [[GEP]], i8 0, i64 24, i1 false) call void @llvm.memset.p0i8.i64(i8* align 4 %p3, i8 0, i64 28, i1 false) store i32 1, i32* %p, align 4 ret void @@ -26,10 +39,16 @@ entry: define void @write0to7(i32* nocapture %p) { ; CHECK-LABEL: @write0to7( +; CHECK-NEXT: entry: +; CHECK-NEXT: [[P3:%.*]] = bitcast i32* [[P:%.*]] to i8* +; CHECK-NEXT: [[TMP0:%.*]] = getelementptr inbounds i8, i8* [[P3]], i64 8 +; CHECK-NEXT: call void @llvm.memset.p0i8.i64(i8* align 4 [[TMP0]], i8 0, i64 24, i1 false) +; CHECK-NEXT: [[P4:%.*]] = bitcast i32* [[P]] to i64* +; CHECK-NEXT: store i64 1, i64* [[P4]], align 8 +; CHECK-NEXT: ret void +; entry: %p3 = bitcast i32* %p to i8* -; CHECK: [[GEP:%[0-9]+]] = getelementptr inbounds i8, i8* %p3, i64 8 -; CHECK: call void @llvm.memset.p0i8.i64(i8* align 4 [[GEP]], i8 0, i64 24, i1 false) call void @llvm.memset.p0i8.i64(i8* align 4 %p3, i8 0, i64 32, i1 false) %p4 = bitcast i32* %p to i64* store i64 1, i64* %p4, align 8 @@ -38,11 +57,18 @@ entry: define void @write0to7_2(i32* nocapture %p) { ; CHECK-LABEL: @write0to7_2( +; CHECK-NEXT: entry: +; CHECK-NEXT: [[ARRAYIDX0:%.*]] = getelementptr inbounds i32, i32* [[P:%.*]], i64 1 +; CHECK-NEXT: [[P3:%.*]] = bitcast i32* [[ARRAYIDX0]] to i8* +; CHECK-NEXT: [[TMP0:%.*]] = getelementptr inbounds i8, i8* [[P3]], i64 4 +; CHECK-NEXT: call void @llvm.memset.p0i8.i64(i8* align 4 [[TMP0]], i8 0, i64 24, i1 false) +; CHECK-NEXT: [[P4:%.*]] = bitcast i32* [[P]] to i64* +; CHECK-NEXT: store i64 1, i64* [[P4]], align 8 +; CHECK-NEXT: ret void +; entry: %arrayidx0 = getelementptr inbounds i32, i32* %p, i64 1 %p3 = bitcast i32* %arrayidx0 to i8* -; CHECK: [[GEP:%[0-9]+]] = getelementptr inbounds i8, i8* %p3, i64 4 -; CHECK: call void @llvm.memset.p0i8.i64(i8* align 4 [[GEP]], i8 0, i64 24, i1 false) call void @llvm.memset.p0i8.i64(i8* align 4 %p3, i8 0, i64 28, i1 false) %p4 = bitcast i32* %p to i64* store i64 1, i64* %p4, align 8 @@ -53,9 +79,14 @@ entry: ; start pointer is changed. define void @dontwrite0to3_align8(i32* nocapture %p) { ; CHECK-LABEL: @dontwrite0to3_align8( +; CHECK-NEXT: entry: +; CHECK-NEXT: [[P3:%.*]] = bitcast i32* [[P:%.*]] to i8* +; CHECK-NEXT: call void @llvm.memset.p0i8.i64(i8* align 8 [[P3]], i8 0, i64 32, i1 false) +; CHECK-NEXT: store i32 1, i32* [[P]], align 4 +; CHECK-NEXT: ret void +; entry: %p3 = bitcast i32* %p to i8* -; CHECK: call void @llvm.memset.p0i8.i64(i8* align 8 %p3, i8 0, i64 32, i1 false) call void @llvm.memset.p0i8.i64(i8* align 8 %p3, i8 0, i64 32, i1 false) store i32 1, i32* %p, align 4 ret void @@ -63,9 +94,15 @@ entry: define void @dontwrite0to1(i32* nocapture %p) { ; CHECK-LABEL: @dontwrite0to1( +; CHECK-NEXT: entry: +; CHECK-NEXT: [[P3:%.*]] = bitcast i32* [[P:%.*]] to i8* +; CHECK-NEXT: call void @llvm.memset.p0i8.i64(i8* align 4 [[P3]], i8 0, i64 32, i1 false) +; CHECK-NEXT: [[P4:%.*]] = bitcast i32* [[P]] to i16* +; CHECK-NEXT: store i16 1, i16* [[P4]], align 4 +; CHECK-NEXT: ret void +; entry: %p3 = bitcast i32* %p to i8* -; CHECK: call void @llvm.memset.p0i8.i64(i8* align 4 %p3, i8 0, i64 32, i1 false) call void @llvm.memset.p0i8.i64(i8* align 4 %p3, i8 0, i64 32, i1 false) %p4 = bitcast i32* %p to i16* store i16 1, i16* %p4, align 4 @@ -74,10 +111,19 @@ entry: define void @dontwrite2to9(i32* nocapture %p) { ; CHECK-LABEL: @dontwrite2to9( +; CHECK-NEXT: entry: +; CHECK-NEXT: [[ARRAYIDX0:%.*]] = getelementptr inbounds i32, i32* [[P:%.*]], i64 1 +; CHECK-NEXT: [[P3:%.*]] = bitcast i32* [[ARRAYIDX0]] to i8* +; CHECK-NEXT: call void @llvm.memset.p0i8.i64(i8* align 4 [[P3]], i8 0, i64 32, i1 false) +; CHECK-NEXT: [[P4:%.*]] = bitcast i32* [[P]] to i16* +; CHECK-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i16, i16* [[P4]], i64 1 +; CHECK-NEXT: [[P5:%.*]] = bitcast i16* [[ARRAYIDX2]] to i64* +; CHECK-NEXT: store i64 1, i64* [[P5]], align 8 +; CHECK-NEXT: ret void +; entry: %arrayidx0 = getelementptr inbounds i32, i32* %p, i64 1 %p3 = bitcast i32* %arrayidx0 to i8* -; CHECK: call void @llvm.memset.p0i8.i64(i8* align 4 %p3, i8 0, i64 32, i1 false) call void @llvm.memset.p0i8.i64(i8* align 4 %p3, i8 0, i64 32, i1 false) %p4 = bitcast i32* %p to i16* %arrayidx2 = getelementptr inbounds i16, i16* %p4, i64 1 @@ -87,10 +133,19 @@ entry: } define void @write8To15AndThen0To7(i64* nocapture %P) { -entry: ; CHECK-LABEL: @write8To15AndThen0To7( -; CHECK: [[GEP:%[0-9]+]] = getelementptr inbounds i8, i8* %mybase0, i64 16 -; CHECK: tail call void @llvm.memset.p0i8.i64(i8* align 8 [[GEP]], i8 0, i64 16, i1 false) +; CHECK-NEXT: entry: +; CHECK-NEXT: [[BASE0:%.*]] = bitcast i64* [[P:%.*]] to i8* +; CHECK-NEXT: [[MYBASE0:%.*]] = getelementptr inbounds i8, i8* [[BASE0]], i64 0 +; CHECK-NEXT: [[TMP0:%.*]] = getelementptr inbounds i8, i8* [[MYBASE0]], i64 16 +; CHECK-NEXT: tail call void @llvm.memset.p0i8.i64(i8* align 8 [[TMP0]], i8 0, i64 16, i1 false) +; CHECK-NEXT: [[BASE64_0:%.*]] = getelementptr inbounds i64, i64* [[P]], i64 0 +; CHECK-NEXT: [[BASE64_1:%.*]] = getelementptr inbounds i64, i64* [[P]], i64 1 +; CHECK-NEXT: store i64 1, i64* [[BASE64_1]] +; CHECK-NEXT: store i64 2, i64* [[BASE64_0]] +; CHECK-NEXT: ret void +; +entry: %base0 = bitcast i64* %P to i8* %mybase0 = getelementptr inbounds i8, i8* %base0, i64 0 |
