Instcombine: destructor loads of structs that do not contains padding

[oota-llvm.git] / test / Transforms / InstCombine / unpack-fca.ll

diff --git a/test/Transforms/InstCombine/unpack-fca.ll b/test/Transforms/InstCombine/unpack-fca.ll
index 48bb157956aaef704166ed3c4616dbd3fb6eb497..9b8d104574914b6ce0f8141a805982f77bacaa95 100644 (file)
--- a/test/Transforms/InstCombine/unpack-fca.ll
+++ b/test/Transforms/InstCombine/unpack-fca.ll
@@ -5,110 +5,134 @@ target triple = "x86_64-unknown-linux-gnu"
 
 %A__vtbl = type { i8*, i32 (%A*)* }
 %A = type { %A__vtbl* }
 
 %A__vtbl = type { i8*, i32 (%A*)* }
 %A = type { %A__vtbl* }

+%B = type { i8*, i64 }

 
 @A__vtblZ = constant %A__vtbl { i8* null, i32 (%A*)* @A.foo }
 
 declare i32 @A.foo(%A* nocapture %this)
 
 
 @A__vtblZ = constant %A__vtbl { i8* null, i32 (%A*)* @A.foo }
 
 declare i32 @A.foo(%A* nocapture %this)
 

-declare i8* @allocmemory(i64)
-
-define void @storeA() {
-body:
-  %0 = tail call i8* @allocmemory(i64 32)
-  %1 = bitcast i8* %0 to %A*
+define void @storeA(%A* %a.ptr) {

 ; CHECK-LABEL: storeA
 ; CHECK-LABEL: storeA

-; CHECK: store %A__vtbl* @A__vtblZ
-  store %A { %A__vtbl* @A__vtblZ }, %A* %1, align 8
+; CHECK-NEXT: [[GEP:%[a-z0-9\.]+]] = getelementptr inbounds %A, %A* %a.ptr, i64 0, i32 0
+; CHECK-NEXT: store %A__vtbl* @A__vtblZ, %A__vtbl** [[GEP]], align 8
+; CHECK-NEXT: ret void
+  store %A { %A__vtbl* @A__vtblZ }, %A* %a.ptr, align 8
+  ret void
+}
+
+define void @storeB(%B* %b.ptr) {
+; CHECK-LABEL: storeB
+; CHECK-NEXT: [[GEP1:%[a-z0-9\.]+]] = getelementptr inbounds %B, %B* %b.ptr, i64 0, i32 0
+; CHECK-NEXT: store i8* null, i8** [[GEP1]], align 8
+; CHECK-NEXT: [[GEP2:%[a-z0-9\.]+]] = getelementptr inbounds %B, %B* %b.ptr, i64 0, i32 1
+; CHECK-NEXT: store i64 42, i64* [[GEP2]], align 8
+; CHECK-NEXT: ret void
+  store %B { i8* null, i64 42 }, %B* %b.ptr, align 8

   ret void
 }
 
   ret void
 }
 

-define void @storeStructOfA() {
-body:
-  %0 = tail call i8* @allocmemory(i64 32)
-  %1 = bitcast i8* %0 to { %A }*
+define void @storeStructOfA({ %A }* %sa.ptr) {

 ; CHECK-LABEL: storeStructOfA
 ; CHECK-LABEL: storeStructOfA

-; CHECK: store %A__vtbl* @A__vtblZ
-  store { %A } { %A { %A__vtbl* @A__vtblZ } }, { %A }* %1, align 8
+; CHECK-NEXT: [[GEP:%[a-z0-9\.]+]] = getelementptr inbounds { %A }, { %A }* %sa.ptr, i64 0, i32 0, i32 0
+; CHECK-NEXT: store %A__vtbl* @A__vtblZ, %A__vtbl** [[GEP]], align 8
+; CHECK-NEXT: ret void
+  store { %A } { %A { %A__vtbl* @A__vtblZ } }, { %A }* %sa.ptr, align 8

   ret void
 }
 
   ret void
 }
 

-define void @storeArrayOfA() {
-body:
-  %0 = tail call i8* @allocmemory(i64 32)
-  %1 = bitcast i8* %0 to [1 x %A]*
+define void @storeArrayOfA([1 x %A]* %aa.ptr) {

 ; CHECK-LABEL: storeArrayOfA
 ; CHECK-LABEL: storeArrayOfA

-; CHECK: store %A__vtbl* @A__vtblZ
-  store [1 x %A] [%A { %A__vtbl* @A__vtblZ }], [1 x %A]* %1, align 8
+; CHECK-NEXT: [[GEP:%[a-z0-9\.]+]] = getelementptr inbounds [1 x %A], [1 x %A]* %aa.ptr, i64 0, i64 0, i32 0
+; CHECK-NEXT: store %A__vtbl* @A__vtblZ, %A__vtbl** [[GEP]], align 8
+; CHECK-NEXT: ret void
+  store [1 x %A] [%A { %A__vtbl* @A__vtblZ }], [1 x %A]* %aa.ptr, align 8

   ret void
 }
 
   ret void
 }
 

-define void @storeStructOfArrayOfA() {
-body:
-  %0 = tail call i8* @allocmemory(i64 32)
-  %1 = bitcast i8* %0 to { [1 x %A] }*
+define void @storeStructOfArrayOfA({ [1 x %A] }* %saa.ptr) {

 ; CHECK-LABEL: storeStructOfArrayOfA
 ; CHECK-LABEL: storeStructOfArrayOfA

-; CHECK: store %A__vtbl* @A__vtblZ
-  store { [1 x %A] } { [1 x %A] [%A { %A__vtbl* @A__vtblZ }] }, { [1 x %A] }* %1, align 8
+; CHECK-NEXT: [[GEP:%[a-z0-9\.]+]] = getelementptr inbounds { [1 x %A] }, { [1 x %A] }* %saa.ptr, i64 0, i32 0, i64 0, i32 0
+; CHECK-NEXT: store %A__vtbl* @A__vtblZ, %A__vtbl** [[GEP]], align 8
+; CHECK-NEXT: ret void
+  store { [1 x %A] } { [1 x %A] [%A { %A__vtbl* @A__vtblZ }] }, { [1 x %A] }* %saa.ptr, align 8

   ret void
 }
 
   ret void
 }
 

-define %A @loadA() {
-body:
-  %0 = tail call i8* @allocmemory(i64 32)
-  %1 = bitcast i8* %0 to %A*
+define %A @loadA(%A* %a.ptr) {

 ; CHECK-LABEL: loadA
 ; CHECK-LABEL: loadA

-; CHECK: load %A__vtbl*,
-; CHECK: insertvalue %A undef, %A__vtbl* {{.*}}, 0
-  %2 = load %A, %A* %1, align 8
-  ret %A %2
+; CHECK-NEXT: [[GEP:%[a-z0-9\.]+]] = getelementptr inbounds %A, %A* %a.ptr, i64 0, i32 0
+; CHECK-NEXT: [[LOAD:%[a-z0-9\.]+]] = load %A__vtbl*, %A__vtbl** [[GEP]], align 8
+; CHECK-NEXT: [[IV:%[a-z0-9\.]+]] = insertvalue %A undef, %A__vtbl* [[LOAD]], 0
+; CHECK-NEXT: ret %A [[IV]]
+  %1 = load %A, %A* %a.ptr, align 8
+  ret %A %1

 }
 
 }
 

-define { %A } @loadStructOfA() {
-body:
-  %0 = tail call i8* @allocmemory(i64 32)
-  %1 = bitcast i8* %0 to { %A }*
+define %B @loadB(%B* %b.ptr) {
+; CHECK-LABEL: loadB
+; CHECK-NEXT: [[GEP1:%[a-z0-9\.]+]] = getelementptr inbounds %B, %B* %b.ptr, i64 0, i32 0
+; CHECK-NEXT: [[LOAD1:%[a-z0-9\.]+]] = load i8*, i8** [[GEP1]], align 8
+; CHECK-NEXT: [[IV1:%[a-z0-9\.]+]] = insertvalue %B undef, i8* [[LOAD1]], 0
+; CHECK-NEXT: [[GEP2:%[a-z0-9\.]+]] = getelementptr inbounds %B, %B* %b.ptr, i64 0, i32 1
+; CHECK-NEXT: [[LOAD2:%[a-z0-9\.]+]] = load i64, i64* [[GEP2]], align 8
+; CHECK-NEXT: [[IV2:%[a-z0-9\.]+]] = insertvalue %B [[IV1]], i64 [[LOAD2]], 1
+; CHECK-NEXT: ret %B [[IV2]]
+  %1 = load %B, %B* %b.ptr, align 8
+  ret %B %1
+}
+
+define { %A } @loadStructOfA({ %A }* %sa.ptr) {

 ; CHECK-LABEL: loadStructOfA
 ; CHECK-LABEL: loadStructOfA

-; CHECK: load %A__vtbl*,
-; CHECK: insertvalue %A undef, %A__vtbl* {{.*}}, 0
-; CHECK: insertvalue { %A } undef, %A {{.*}}, 0
-  %2 = load { %A }, { %A }* %1, align 8
-  ret { %A } %2
+; CHECK-NEXT: [[GEP:%[a-z0-9\.]+]] = getelementptr inbounds { %A }, { %A }* %sa.ptr, i64 0, i32 0, i32 0
+; CHECK-NEXT: [[LOAD:%[a-z0-9\.]+]] = load %A__vtbl*, %A__vtbl** [[GEP]], align 8
+; CHECK-NEXT: [[IV1:%[a-z0-9\.]+]] = insertvalue %A undef, %A__vtbl* [[LOAD]], 0
+; CHECK-NEXT: [[IV2:%[a-z0-9\.]+]] = insertvalue { %A } undef, %A [[IV1]], 0
+; CHECK-NEXT: ret { %A } [[IV2]]
+  %1 = load { %A }, { %A }* %sa.ptr, align 8
+  ret { %A } %1

 }
 
 }
 

-define [1 x %A] @loadArrayOfA() {
-body:
-  %0 = tail call i8* @allocmemory(i64 32)
-  %1 = bitcast i8* %0 to [1 x %A]*
+define [1 x %A] @loadArrayOfA([1 x %A]* %aa.ptr) {

 ; CHECK-LABEL: loadArrayOfA
 ; CHECK-LABEL: loadArrayOfA

-; CHECK: load %A__vtbl*,
-; CHECK: insertvalue %A undef, %A__vtbl* {{.*}}, 0
-; CHECK: insertvalue [1 x %A] undef, %A {{.*}}, 0
-  %2 = load [1 x %A], [1 x %A]* %1, align 8
-  ret [1 x %A] %2
+; CHECK-NEXT: [[GEP:%[a-z0-9\.]+]] = getelementptr inbounds [1 x %A], [1 x %A]* %aa.ptr, i64 0, i64 0, i32 0
+; CHECK-NEXT: [[LOAD:%[a-z0-9\.]+]] = load %A__vtbl*, %A__vtbl** [[GEP]], align 8
+; CHECK-NEXT: [[IV1:%[a-z0-9\.]+]] = insertvalue %A undef, %A__vtbl* [[LOAD]], 0
+; CHECK-NEXT: [[IV2:%[a-z0-9\.]+]] = insertvalue [1 x %A] undef, %A [[IV1]], 0
+; CHECK-NEXT: ret [1 x %A] [[IV2]]
+  %1 = load [1 x %A], [1 x %A]* %aa.ptr, align 8
+  ret [1 x %A] %1

 }
 
 }
 

-define { [1 x %A] } @loadStructOfArrayOfA() {
-body:
-  %0 = tail call i8* @allocmemory(i64 32)
-  %1 = bitcast i8* %0 to { [1 x %A] }*
+define { [1 x %A] } @loadStructOfArrayOfA({ [1 x %A] }* %saa.ptr) {

 ; CHECK-LABEL: loadStructOfArrayOfA
 ; CHECK-LABEL: loadStructOfArrayOfA

-; CHECK: load %A__vtbl*,
-; CHECK: insertvalue %A undef, %A__vtbl* {{.*}}, 0
-; CHECK: insertvalue [1 x %A] undef, %A {{.*}}, 0
-; CHECK: insertvalue { [1 x %A] } undef, [1 x %A] {{.*}}, 0
-  %2 = load { [1 x %A] }, { [1 x %A] }* %1, align 8
-  ret { [1 x %A] } %2
+; CHECK-NEXT: [[GEP:%[a-z0-9\.]+]] = getelementptr inbounds { [1 x %A] }, { [1 x %A] }* %saa.ptr, i64 0, i32 0, i64 0, i32 0
+; CHECK-NEXT: [[LOAD:%[a-z0-9\.]+]] = load %A__vtbl*, %A__vtbl** [[GEP]], align 8
+; CHECK-NEXT: [[IV1:%[a-z0-9\.]+]] = insertvalue %A undef, %A__vtbl* [[LOAD]], 0
+; CHECK-NEXT: [[IV2:%[a-z0-9\.]+]] = insertvalue [1 x %A] undef, %A [[IV1]], 0
+; CHECK-NEXT: [[IV3:%[a-z0-9\.]+]] = insertvalue { [1 x %A] } undef, [1 x %A] [[IV2]], 0
+; CHECK-NEXT: ret { [1 x %A] } [[IV3]]
+  %1 = load { [1 x %A] }, { [1 x %A] }* %saa.ptr, align 8
+  ret { [1 x %A] } %1

 }
 
 }
 

-define { %A } @structOfA() {
-body:
-  %0 = tail call i8* @allocmemory(i64 32)
-  %1 = bitcast i8* %0 to { %A }*
+define { %A } @structOfA({ %A }* %sa.ptr) {

 ; CHECK-LABEL: structOfA
 ; CHECK-LABEL: structOfA

-; CHECK: store %A__vtbl* @A__vtblZ
-  store { %A } { %A { %A__vtbl* @A__vtblZ } }, { %A }* %1, align 8
-  %2 = load { %A }, { %A }* %1, align 8
-; CHECK-NOT: load
-; CHECK: ret { %A } { %A { %A__vtbl* @A__vtblZ } }
-  ret { %A } %2
+; CHECK-NEXT: [[GEP:%[a-z0-9\.]+]] = getelementptr inbounds { %A }, { %A }* %sa.ptr, i64 0, i32 0, i32 0
+; CHECK-NEXT: store %A__vtbl* @A__vtblZ, %A__vtbl** [[GEP]], align 8
+; CHECK-NEXT: ret { %A } { %A { %A__vtbl* @A__vtblZ } }
+  store { %A } { %A { %A__vtbl* @A__vtblZ } }, { %A }* %sa.ptr, align 8
+  %1 = load { %A }, { %A }* %sa.ptr, align 8
+  ret { %A } %1
+}
+
+define %B @structB(%B* %b.ptr) {
+; CHECK-LABEL: structB
+; CHECK-NEXT: [[GEP1:%[a-z0-9\.]+]] = getelementptr inbounds %B, %B* %b.ptr, i64 0, i32 0
+; CHECK-NEXT: store i8* null, i8** [[GEP1]], align 8
+; CHECK-NEXT: [[GEP2:%[a-z0-9\.]+]] = getelementptr inbounds %B, %B* %b.ptr, i64 0, i32 1
+; CHECK-NEXT: store i64 42, i64* [[GEP2]], align 8
+; CHECK-NEXT: ret %B { i8* null, i64 42 }
+  store %B { i8* null, i64 42 }, %B* %b.ptr, align 8
+  %1 = load %B, %B* %b.ptr, align 8
+  ret %B %1

 }
 }