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Clarify ARM calling conventions.
author
Jakob Stoklund Olesen
<stoklund@2pi.dk>
Wed, 22 Feb 2012 01:07:19 +0000
(
01:07
+0000)
committer
Jakob Stoklund Olesen
<stoklund@2pi.dk>
Wed, 22 Feb 2012 01:07:19 +0000
(
01:07
+0000)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151113
91177308
-0d34-0410-b5e6-
96231b3b80d8
lib/Target/ARM/ARMBaseInstrInfo.cpp
patch
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diff --git
a/lib/Target/ARM/ARMBaseInstrInfo.cpp
b/lib/Target/ARM/ARMBaseInstrInfo.cpp
index 88eb67f54fb8126553d95f003c1b7df422c74db7..ea4baab95c50a9d3cc2477ba18a150486e7e82fe 100644
(file)
--- a/
lib/Target/ARM/ARMBaseInstrInfo.cpp
+++ b/
lib/Target/ARM/ARMBaseInstrInfo.cpp
@@
-1401,6
+1401,8
@@
bool ARMBaseInstrInfo::isSchedulingBoundary(const MachineInstr *MI,
// stack slot reference to depend on the instruction that does the
// modification.
// Calls don't actually change the stack pointer, even if they have imp-defs.
+ // No ARM calling conventions change the stack pointer. (X86 calling
+ // conventions sometimes do).
if (!MI->isCall() && MI->definesRegister(ARM::SP))
return true;