[llvm-branch-commits] [llvm-branch] r196668 - Merging r196638:
Bill Wendling
isanbard at gmail.com
Sat Dec 7 13:24:29 PST 2013
Author: void
Date: Sat Dec 7 15:24:29 2013
New Revision: 196668
URL: http://llvm.org/viewvc/llvm-project?rev=196668&view=rev
Log:
Merging r196638:
------------------------------------------------------------------------
r196638 | arsenm | 2013-12-06 18:58:45 -0800 (Fri, 06 Dec 2013) | 1 line
Fix assert with copy from global through addrspacecast
------------------------------------------------------------------------
Modified:
llvm/branches/release_34/ (props changed)
llvm/branches/release_34/lib/Transforms/InstCombine/InstCombineLoadStoreAlloca.cpp
llvm/branches/release_34/test/Transforms/InstCombine/addrspacecast.ll
Propchange: llvm/branches/release_34/
------------------------------------------------------------------------------
--- svn:mergeinfo (original)
+++ svn:mergeinfo Sat Dec 7 15:24:29 2013
@@ -1,3 +1,3 @@
/llvm/branches/Apple/Pertwee:110850,110961
/llvm/branches/type-system-rewrite:133420-134817
-/llvm/trunk:155241,195092-195094,195100,195102-195103,195118,195129,195136,195138,195148,195152,195156-195157,195161-195162,195193,195272,195317-195318,195327,195330,195333,195339,195343,195355,195364,195379,195397-195399,195401,195408,195421,195423-195424,195432,195439,195444,195455-195456,195469,195476-195477,195479,195491-195493,195514,195528,195547,195567,195573-195576,195590-195591,195599,195632,195635-195636,195670,195677,195679,195682,195684,195713,195716,195769,195773,195779,195782,195787-195788,195791,195803,195812,195827,195834,195843-195844,195878-195881,195887,195903,195905,195912,195915,195932,195936-195943,195972-195973,195975-195976,196004,196044-196046,196069,196100,196104,196129,196151,196153,196261,196267,196269,196294,196369,196391,196508,196532,196538,196611,196658
+/llvm/trunk:155241,195092-195094,195100,195102-195103,195118,195129,195136,195138,195148,195152,195156-195157,195161-195162,195193,195272,195317-195318,195327,195330,195333,195339,195343,195355,195364,195379,195397-195399,195401,195408,195421,195423-195424,195432,195439,195444,195455-195456,195469,195476-195477,195479,195491-195493,195514,195528,195547,195567,195573-195576,195590-195591,195599,195632,195635-195636,195670,195677,195679,195682,195684,195713,195716,195769,195773,195779,195782,195787-195788,195791,195803,195812,195827,195834,195843-195844,195878-195881,195887,195903,195905,195912,195915,195932,195936-195943,195972-195973,195975-195976,196004,196044-196046,196069,196100,196104,196129,196151,196153,196261,196267,196269,196294,196369,196391,196508,196532,196538,196611,196638,196658
Modified: llvm/branches/release_34/lib/Transforms/InstCombine/InstCombineLoadStoreAlloca.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/branches/release_34/lib/Transforms/InstCombine/InstCombineLoadStoreAlloca.cpp?rev=196668&r1=196667&r2=196668&view=diff
==============================================================================
--- llvm/branches/release_34/lib/Transforms/InstCombine/InstCombineLoadStoreAlloca.cpp (original)
+++ llvm/branches/release_34/lib/Transforms/InstCombine/InstCombineLoadStoreAlloca.cpp Sat Dec 7 15:24:29 2013
@@ -263,9 +263,9 @@ Instruction *InstCombiner::visitAllocaIn
for (unsigned i = 0, e = ToDelete.size(); i != e; ++i)
EraseInstFromFunction(*ToDelete[i]);
Constant *TheSrc = cast<Constant>(Copy->getSource());
- Instruction *NewI
- = ReplaceInstUsesWith(AI, ConstantExpr::getBitCast(TheSrc,
- AI.getType()));
+ Constant *Cast
+ = ConstantExpr::getPointerBitCastOrAddrSpaceCast(TheSrc, AI.getType());
+ Instruction *NewI = ReplaceInstUsesWith(AI, Cast);
EraseInstFromFunction(*Copy);
++NumGlobalCopies;
return NewI;
Modified: llvm/branches/release_34/test/Transforms/InstCombine/addrspacecast.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/branches/release_34/test/Transforms/InstCombine/addrspacecast.ll?rev=196668&r1=196667&r2=196668&view=diff
==============================================================================
--- llvm/branches/release_34/test/Transforms/InstCombine/addrspacecast.ll (original)
+++ llvm/branches/release_34/test/Transforms/InstCombine/addrspacecast.ll Sat Dec 7 15:24:29 2013
@@ -2,6 +2,12 @@
target datalayout = "e-p:64:64:64-p1:32:32:32-p2:16:16:16-n8:16:32:64"
+
+declare void @llvm.memcpy.p0i8.p0i8.i32(i8*, i8*, i32, i32, i1) nounwind
+declare void @llvm.memcpy.p0i8.p1i8.i32(i8*, i8 addrspace(1)*, i32, i32, i1) nounwind
+declare void @llvm.memcpy.p0i8.p2i8.i32(i8*, i8 addrspace(2)*, i32, i32, i1) nounwind
+
+
define i32* @combine_redundant_addrspacecast(i32 addrspace(1)* %x) nounwind {
; CHECK-LABEL: @combine_redundant_addrspacecast(
; CHECK: addrspacecast i32 addrspace(1)* %x to i32*
@@ -29,3 +35,35 @@ define float* @combine_redundant_addrspa
ret float* %z
}
+ at const_array = addrspace(2) constant [60 x i8] [i8 2, i8 9, i8 4, i8 22, i8 2, i8 9, i8 4, i8 22, i8 2, i8 9, i8 4, i8 22,
+ i8 2, i8 9, i8 4, i8 22, i8 2, i8 9, i8 4, i8 22, i8 2, i8 9, i8 4, i8 22,
+ i8 2, i8 9, i8 4, i8 22, i8 2, i8 9, i8 4, i8 22, i8 2, i8 9, i8 4, i8 22,
+ i8 2, i8 9, i8 4, i8 22, i8 2, i8 9, i8 4, i8 22, i8 2, i8 9, i8 4, i8 22,
+ i8 2, i8 9, i8 4, i8 22, i8 2, i8 9, i8 4, i8 22, i8 2, i8 9, i8 4, i8 22 ]
+
+declare void @foo(i8*) nounwind
+
+; A copy from a constant addrspacecast'ed global
+; CHECK-LABEL: @memcpy_addrspacecast(
+; CHECK-NOT: call void @llvm.memcpy
+define i32 @memcpy_addrspacecast() nounwind {
+entry:
+ %alloca = alloca i8, i32 48
+ call void @llvm.memcpy.p0i8.p1i8.i32(i8* %alloca, i8 addrspace(1)* addrspacecast (i8 addrspace(2)* getelementptr inbounds ([60 x i8] addrspace(2)* @const_array, i16 0, i16 4) to i8 addrspace(1)*), i32 48, i32 4, i1 false) nounwind
+ br label %loop.body
+
+loop.body:
+ %i = phi i32 [ 0, %entry ], [ %i.inc, %loop.body ]
+ %sum = phi i32 [ 0, %entry ], [ %sum.inc, %loop.body]
+ %ptr = getelementptr i8* %alloca, i32 %i
+ %load = load i8* %ptr
+ %ext = zext i8 %load to i32
+ %sum.inc = add i32 %sum, %ext
+ %i.inc = add i32 %i, 1
+ %cmp = icmp ne i32 %i, 48
+ br i1 %cmp, label %loop.body, label %end
+
+end:
+ ret i32 %sum.inc
+}
+
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