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authorEvan Cheng <evan.cheng@apple.com>2007-09-12 23:02:04 +0000
committerEvan Cheng <evan.cheng@apple.com>2007-09-12 23:02:04 +0000
commit0d8d31674f3cc95f5bba1174a0e8d54d5b9c210a (patch)
tree9e8e00df9111ae3faddd1ce24815fd1445da1b64
parentbef8e0b0a7afe602ddf09165ff4dbb8fa5f696a9 (diff)
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Fixed a typo that's causing a missing kill marker.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41893 91177308-0d34-0410-b5e6-96231b3b80d8
-rw-r--r--lib/CodeGen/LiveVariables.cpp7
-rw-r--r--test/CodeGen/PowerPC/2007-09-12-LiveIntervalsAssert.ll15
2 files changed, 18 insertions, 4 deletions
diff --git a/lib/CodeGen/LiveVariables.cpp b/lib/CodeGen/LiveVariables.cpp
index 97e8671ca8..dd5afcc432 100644
--- a/lib/CodeGen/LiveVariables.cpp
+++ b/lib/CodeGen/LiveVariables.cpp
@@ -306,9 +306,8 @@ bool LiveVariables::HandlePhysRegKill(unsigned Reg, MachineInstr *RefMI,
for (const unsigned *SubRegs = RegInfo->getImmediateSubRegisters(Reg);
unsigned SubReg = *SubRegs; ++SubRegs) {
MachineInstr *LastRef = PhysRegInfo[SubReg];
- if (LastRef != RefMI)
- SubKills.insert(SubReg);
- else if (!HandlePhysRegKill(SubReg, RefMI, SubKills))
+ if (LastRef != RefMI ||
+ !HandlePhysRegKill(SubReg, RefMI, SubKills))
SubKills.insert(SubReg);
}
@@ -336,7 +335,7 @@ void LiveVariables::addRegisterKills(unsigned Reg, MachineInstr *MI,
bool LiveVariables::HandlePhysRegKill(unsigned Reg, MachineInstr *RefMI) {
SmallSet<unsigned, 4> SubKills;
if (HandlePhysRegKill(Reg, RefMI, SubKills)) {
- addRegisterKilled(Reg, RefMI);
+ addRegisterKilled(Reg, RefMI, true);
return true;
} else {
// Some sub-registers are killed by another MI.
diff --git a/test/CodeGen/PowerPC/2007-09-12-LiveIntervalsAssert.ll b/test/CodeGen/PowerPC/2007-09-12-LiveIntervalsAssert.ll
new file mode 100644
index 0000000000..f4b87cf451
--- /dev/null
+++ b/test/CodeGen/PowerPC/2007-09-12-LiveIntervalsAssert.ll
@@ -0,0 +1,15 @@
+; RUN: llvm-as < %s | llc -mtriple=powerpc64-apple-darwin
+
+declare void @cxa_atexit_check_1(i8*)
+
+define i32 @check_cxa_atexit(i32 (void (i8*)*, i8*, i8*)* %cxa_atexit, void (i8*)* %cxa_finalize) {
+entry:
+ %tmp7 = call i32 null( void (i8*)* @cxa_atexit_check_1, i8* null, i8* null ) ; <i32> [#uses=0]
+ br i1 false, label %cond_true, label %cond_next
+
+cond_true: ; preds = %entry
+ ret i32 0
+
+cond_next: ; preds = %entry
+ ret i32 0
+}