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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2012-02-21 23:47:43 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2012-02-21 23:47:43 +0000 |
| commit | a1aa8db51715bdd21770fbe4f7d7abf2c5d28829 (patch) | |
| tree | 66808a47bb42d9d0c9beb5cb948e4200506c7977 /lib | |
| parent | 4586d257abf13b57d115d6bac9fb38ddc811acaf (diff) | |
| download | external_llvm-a1aa8db51715bdd21770fbe4f7d7abf2c5d28829.zip external_llvm-a1aa8db51715bdd21770fbe4f7d7abf2c5d28829.tar.gz external_llvm-a1aa8db51715bdd21770fbe4f7d7abf2c5d28829.tar.bz2 | |
Calls don't really change the stack pointer.
Even if a call instruction has %SP<imp-def> operands, it doesn't change
the value of the stack pointer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151104 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Target/ARM/ARMBaseInstrInfo.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/Target/ARM/ARMBaseInstrInfo.cpp b/lib/Target/ARM/ARMBaseInstrInfo.cpp index 8f0170c..88eb67f 100644 --- a/lib/Target/ARM/ARMBaseInstrInfo.cpp +++ b/lib/Target/ARM/ARMBaseInstrInfo.cpp @@ -1400,7 +1400,8 @@ bool ARMBaseInstrInfo::isSchedulingBoundary(const MachineInstr *MI, // saves compile time, because it doesn't require every single // stack slot reference to depend on the instruction that does the // modification. - if (MI->definesRegister(ARM::SP)) + // Calls don't actually change the stack pointer, even if they have imp-defs. + if (!MI->isCall() && MI->definesRegister(ARM::SP)) return true; return false; |