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make GVN try to rename inputs to the resultant replaced values, which
cleans up the generated code a bit. This should have the added benefit of not randomly renaming functions/globals like my previous patch did. :) llvm-svn: 61023
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@ -1040,6 +1040,9 @@ bool GVN::processNonLocalLoad(LoadInst *LI,
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// Perform PHI construction.
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Value* v = GetValueForBlock(LI->getParent(), LI, BlockReplValues, true);
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LI->replaceAllUsesWith(v);
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if (!isa<GlobalValue>(v))
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v->takeName(LI);
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if (isa<PointerType>(v->getType()))
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MD->invalidateCachedPointerInfo(v);
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toErase.push_back(LI);
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@ -1135,7 +1138,8 @@ bool GVN::processNonLocalLoad(LoadInst *LI,
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// Perform PHI construction.
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Value* v = GetValueForBlock(LI->getParent(), LI, BlockReplValues, true);
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LI->replaceAllUsesWith(v);
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v->takeName(LI);
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if (!isa<GlobalValue>(v))
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v->takeName(LI);
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if (isa<PointerType>(v->getType()))
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MD->invalidateCachedPointerInfo(v);
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toErase.push_back(LI);
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@ -1,5 +1,5 @@
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; RUN: llvm-as < %s | opt -gvn | llvm-dis | not grep {tmp17625 =}
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; RUN: llvm-as < %s | opt -gvn | llvm-dis | not grep {tmp17631 =}
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; RUN: llvm-as < %s | opt -gvn | llvm-dis | grep {tmp17625 = phi i32. }
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; RUN: llvm-as < %s | opt -gvn | llvm-dis | grep {tmp17631.* = phi i32. }
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@last = external global [65 x i32*] ; <[65 x i32*]*> [#uses=1]
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@ -1,4 +1,4 @@
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; RUN: llvm-as < %s | opt -gvn | llvm-dis | not grep {tmp298316 =}
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; RUN: llvm-as < %s | opt -gvn | llvm-dis | grep {tmp298316 = phi i32 }
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%struct..0anon = type { i32 }
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%struct.FILE = type { i8*, i32, i32, i16, i16, %struct.__sbuf, i32, i8*, i32 (i8*)*, i32 (i8*, i8*, i32)*, i64 (i8*, i64, i32)*, i32 (i8*, i8*, i32)*, %struct.__sbuf, %struct.__sFILEX*, i32, [3 x i8], [1 x i8], %struct.__sbuf, i32, i64 }
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@ -1,4 +1,4 @@
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; RUN: llvm-as < %s | opt -gvn | llvm-dis | grep tmp51.rle
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; RUN: llvm-as < %s | opt -gvn | llvm-dis | grep {tmp47 = phi i32 }
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%struct.anon = type { i32 (i32, i32, i32)*, i32, i32, [3 x i32], i8*, i8*, i8* }
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@debug = external constant i32 ; <i32*> [#uses=0]
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@ -1,4 +1,4 @@
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; RUN: llvm-as < %s | opt -gvn | llvm-dis | not grep DEAD
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; RUN: llvm-as < %s | opt -gvn | llvm-dis | grep load | count 2
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define i32 @main(i32** %p) {
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block1:
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@ -14,7 +14,7 @@ block3:
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br label %block4
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block4:
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%DEAD = load i32** %p
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%c = load i32* %DEAD
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ret i32 %c
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%c = load i32** %p
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%d = load i32* %c
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ret i32 %d
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}
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@ -1,4 +1,4 @@
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; RUN: llvm-as < %s | opt -gvn | llvm-dis | grep {DEAD.rle = phi i32}
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; RUN: llvm-as < %s | opt -gvn | llvm-dis | grep {DEAD = phi i32 }
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; XFAIL: *
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; FIXME: GVN should eliminate the fully redundant %9 GEP which
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@ -1,4 +1,4 @@
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; RUN: llvm-as < %s | opt -gvn | llvm-dis | not grep {DEAD =}
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; RUN: llvm-as < %s | opt -gvn | llvm-dis | grep {%DEAD = phi i32. }
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define i32 @main(i32** %p) {
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block1:
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@ -1,5 +1,5 @@
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; RUN: llvm-as < %s | opt -gvn | llvm-dis | grep {%cv.rle = phi i32}
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; RUN: llvm-as < %s | opt -gvn | llvm-dis | grep {%bv.rle = phi i32}
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; RUN: llvm-as < %s | opt -gvn | llvm-dis | grep {%cv = phi i32}
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; RUN: llvm-as < %s | opt -gvn | llvm-dis | grep {%bv = phi i32}
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target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
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target triple = "i386-apple-darwin7"
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@ -1,4 +1,4 @@
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; RUN: llvm-as < %s | opt -gvn | llvm-dis | not grep {DEAD =}
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; RUN: llvm-as < %s | opt -gvn | llvm-dis | grep {DEAD = phi i32 }
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define i32 @main(i32* %p) {
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block1:
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