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authorNemanja Ivanovic <nemanja.i.ibm@gmail.com>2017-12-15 11:47:48 +0000
committerNemanja Ivanovic <nemanja.i.ibm@gmail.com>2017-12-15 11:47:48 +0000
commit1794cdc4813e2ef6843c2e9e37c2888bca14d33f (patch)
tree07c9d07e2c636189e3d279ec044d7b7bbed9c89b /llvm/lib/Target/PowerPC/PPCMIPeephole.cpp
parent0c1e0dbb96d5fe93909c175dfd2da939ccf1e173 (diff)
downloadbcm5719-llvm-1794cdc4813e2ef6843c2e9e37c2888bca14d33f.tar.gz
bcm5719-llvm-1794cdc4813e2ef6843c2e9e37c2888bca14d33f.zip
Fix code causing fallthrough warnings in the PPC back end.
llvm-svn: 320806
Diffstat (limited to 'llvm/lib/Target/PowerPC/PPCMIPeephole.cpp')
-rw-r--r--llvm/lib/Target/PowerPC/PPCMIPeephole.cpp5
1 files changed, 4 insertions, 1 deletions
diff --git a/llvm/lib/Target/PowerPC/PPCMIPeephole.cpp b/llvm/lib/Target/PowerPC/PPCMIPeephole.cpp
index 45647a2c36b..64c5e4ebb87 100644
--- a/llvm/lib/Target/PowerPC/PPCMIPeephole.cpp
+++ b/llvm/lib/Target/PowerPC/PPCMIPeephole.cpp
@@ -774,7 +774,7 @@ bool PPCMIPeephole::simplifyCode(void) {
// Eliminate all the TOC save instructions which are redundant.
Simplified |= eliminateRedundantTOCSaves(TOCSaves);
// We try to eliminate redundant compare instruction.
- //Simplified |= eliminateRedundantCompare();
+ Simplified |= eliminateRedundantCompare();
return Simplified;
}
@@ -1025,6 +1025,9 @@ bool PPCMIPeephole::eliminateRedundantTOCSaves(
// bge 0, .LBB0_4
bool PPCMIPeephole::eliminateRedundantCompare(void) {
+ // FIXME: this transformation is causing miscompiles. Disabling it for now
+ // until we can resolve the issue.
+ return false;
bool Simplified = false;
for (MachineBasicBlock &MBB2 : *MF) {
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