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Teach scalarrepl about address spaces

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193720 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Matt Arsenault 2013-10-30 22:54:58 +00:00
parent 415b33f161
commit 9effcbb879
2 changed files with 39 additions and 6 deletions
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2
lib/Transforms/Scalar/ScalarReplAggregates.cpp
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@ -963,7 +963,7 @@ ConvertScalar_InsertValue(Value *SV, Value *Old,
if (SV->getType()->isFloatingPointTy() || SV->getType()->isVectorTy()) if (SV->getType()->isFloatingPointTy() || SV->getType()->isVectorTy())
SV = Builder.CreateBitCast(SV, IntegerType::get(SV->getContext(),SrcWidth)); SV = Builder.CreateBitCast(SV, IntegerType::get(SV->getContext(),SrcWidth));
else if (SV->getType()->isPointerTy()) else if (SV->getType()->isPointerTy())
SV = Builder.CreatePtrToInt(SV, TD.getIntPtrType(SV->getContext())); SV = Builder.CreatePtrToInt(SV, TD.getIntPtrType(SV->getType()));
// Zero extend or truncate the value if needed. // Zero extend or truncate the value if needed.
if (SV->getType() != AllocaType) { if (SV->getType() != AllocaType) {

43
test/Transforms/ScalarRepl/union-pointer.ll
View File

@ -1,13 +1,16 @@
; PR892 ; PR892
; RUN: opt < %s -scalarrepl -S | \ ; RUN: opt < %s -scalarrepl -S | FileCheck %s
; RUN: not grep alloca
; RUN: opt < %s -scalarrepl -S | grep "ret i8"
target datalayout = "e-p:32:32-n8:16:32"
target datalayout = "e-p:32:32-p1:16:16-n8:16:32"
target triple = "i686-apple-darwin8.7.2" target triple = "i686-apple-darwin8.7.2"
%struct.Val = type { i32*, i32 }
%struct.Val = type { i32*, i32 }
define i8* @test(i16* %X) { define i8* @test(i16* %X) {
; CHECK-LABEL: @test(
; CHECK-NOT: alloca
; CHECK: ret i8*
%X_addr = alloca i16* ; <i16**> [#uses=2] %X_addr = alloca i16* ; <i16**> [#uses=2]
store i16* %X, i16** %X_addr store i16* %X, i16** %X_addr
%X_addr.upgrd.1 = bitcast i16** %X_addr to i8** ; <i8**> [#uses=1] %X_addr.upgrd.1 = bitcast i16** %X_addr to i8** ; <i8**> [#uses=1]
@ -15,7 +18,37 @@ define i8* @test(i16* %X) {
ret i8* %tmp ret i8* %tmp
} }
define i8 addrspace(1)* @test_as1(i16 addrspace(1)* %x) {
; CHECK-LABEL: @test_as1(
; CHECK-NEXT: %1 = ptrtoint i16 addrspace(1)* %x to i16
; CHECK-NEXT: %2 = inttoptr i16 %1 to i8 addrspace(1)*
; CHECK-NEXT: ret i8 addrspace(1)* %2
%x_addr = alloca i16 addrspace(1)*
store i16 addrspace(1)* %x, i16 addrspace(1)** %x_addr
%x_addr.upgrd.1 = bitcast i16 addrspace(1)** %x_addr to i8 addrspace(1)**
%tmp = load i8 addrspace(1)** %x_addr.upgrd.1
ret i8 addrspace(1)* %tmp
}
define i8 addrspace(1)* @test_as1_array(i16 addrspace(1)* %x) {
; CHECK-LABEL: @test_as1_array(
; CHECK-NEXT: %1 = ptrtoint i16 addrspace(1)* %x to i16
; CHECK-NEXT: %2 = inttoptr i16 %1 to i8 addrspace(1)*
; CHECK-NEXT: ret i8 addrspace(1)* %2
%as_ptr_array = alloca [4 x i16 addrspace(1)*]
%elem1 = getelementptr [4 x i16 addrspace(1)*]* %as_ptr_array, i32 0, i32 1
store i16 addrspace(1)* %x, i16 addrspace(1)** %elem1
%elem1.cast = bitcast i16 addrspace(1)** %elem1 to i8 addrspace(1)**
%tmp = load i8 addrspace(1)** %elem1.cast
ret i8 addrspace(1)* %tmp
}
define void @test2(i64 %Op.0) { define void @test2(i64 %Op.0) {
; CHECK-LABEL: @test2(
; CHECK-NOT: alloca
; CHECK: ret void
%tmp = alloca %struct.Val, align 8 ; <%struct.Val*> [#uses=3] %tmp = alloca %struct.Val, align 8 ; <%struct.Val*> [#uses=3]
%tmp1 = alloca %struct.Val, align 8 ; <%struct.Val*> [#uses=3] %tmp1 = alloca %struct.Val, align 8 ; <%struct.Val*> [#uses=3]
%tmp.upgrd.2 = call i64 @_Z3foov( ) ; <i64> [#uses=1] %tmp.upgrd.2 = call i64 @_Z3foov( ) ; <i64> [#uses=1]