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| author | Nadav Rotem <nrotem@apple.com> | 2012-08-14 05:19:07 +0000 |
|---|---|---|
| committer | Nadav Rotem <nrotem@apple.com> | 2012-08-14 05:19:07 +0000 |
| commit | 3e883734fab4da8413f16957dd116d4ffd9d3223 (patch) | |
| tree | 3165c1b0a62a477da5ca386e10ee5dc97d752da3 /test/CodeGen/PowerPC/lbzux.ll | |
| parent | 443c9ed7688e66c55c43819a75be681574b291de (diff) | |
| download | external_llvm-3e883734fab4da8413f16957dd116d4ffd9d3223.zip external_llvm-3e883734fab4da8413f16957dd116d4ffd9d3223.tar.gz external_llvm-3e883734fab4da8413f16957dd116d4ffd9d3223.tar.bz2 | |
During the CodeGenPrepare we often lower intrinsics (such as objsize)
and allow some optimizations to turn conditional branches into unconditional.
This commit adds a simple control-flow optimization which merges two consecutive
basic blocks which are connected by a single edge. This allows the codegen to
operate on larger basic blocks.
rdar://11973998
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161852 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/PowerPC/lbzux.ll')
| -rw-r--r-- | test/CodeGen/PowerPC/lbzux.ll | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/test/CodeGen/PowerPC/lbzux.ll b/test/CodeGen/PowerPC/lbzux.ll index 5725c0d..12f1d1f 100644 --- a/test/CodeGen/PowerPC/lbzux.ll +++ b/test/CodeGen/PowerPC/lbzux.ll @@ -2,7 +2,7 @@ target datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f3 target triple = "powerpc64-unknown-linux-gnu" ; RUN: llc < %s | FileCheck %s -define fastcc void @allocateSpace() nounwind { +define fastcc void @allocateSpace(i1 %cond1, i1 %cond2) nounwind { entry: %0 = load i8** undef, align 8, !tbaa !0 br i1 undef, label %return, label %lor.lhs.false @@ -20,10 +20,10 @@ while.cond: ; preds = %while.body, %if.the %idxprom17 = sext i32 0 to i64 %arrayidx18 = getelementptr inbounds i8* %0, i64 %idxprom17 %or = or i32 undef, undef - br i1 false, label %if.end71, label %while.body + br i1 %cond1, label %if.end71, label %while.body while.body: ; preds = %while.cond - br i1 undef, label %while.cond, label %if.then45 + br i1 %cond2, label %while.cond, label %if.then45 if.then45: ; preds = %while.body %idxprom48139 = zext i32 %or to i64 |