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| author | Quentin Colombet <qcolombet@apple.com> | 2015-11-18 23:12:20 +0000 |
|---|---|---|
| committer | Quentin Colombet <qcolombet@apple.com> | 2015-11-18 23:12:20 +0000 |
| commit | f6645cce9195f7f94f2ac76a1e61dcf80e8dde69 (patch) | |
| tree | 62ddf389dc4f0dc54686d910aa6a9b2b5786ddd8 /llvm | |
| parent | eb3bc60e62f5da813f8ecd9d9f587c33126d44f2 (diff) | |
| download | bcm5719-llvm-f6645cce9195f7f94f2ac76a1e61dcf80e8dde69.tar.gz bcm5719-llvm-f6645cce9195f7f94f2ac76a1e61dcf80e8dde69.zip | |
[AArch64] Enable shrink-wrapping by default.
Differential Revision: http://reviews.llvm.org/D14360
rdar://problem/20820748
llvm-svn: 253520
Diffstat (limited to 'llvm')
| -rw-r--r-- | llvm/lib/Target/AArch64/AArch64FrameLowering.h | 5 | ||||
| -rw-r--r-- | llvm/test/CodeGen/AArch64/aarch64-dynamic-stack-layout.ll | 2 |
2 files changed, 6 insertions, 1 deletions
diff --git a/llvm/lib/Target/AArch64/AArch64FrameLowering.h b/llvm/lib/Target/AArch64/AArch64FrameLowering.h index 16dab2f5754..427afdf4acb 100644 --- a/llvm/lib/Target/AArch64/AArch64FrameLowering.h +++ b/llvm/lib/Target/AArch64/AArch64FrameLowering.h @@ -60,6 +60,11 @@ public: void determineCalleeSaves(MachineFunction &MF, BitVector &SavedRegs, RegScavenger *RS) const override; + + /// Returns true if the target will correctly handle shrink wrapping. + bool enableShrinkWrapping(const MachineFunction &MF) const override { + return true; + } }; } // End llvm namespace diff --git a/llvm/test/CodeGen/AArch64/aarch64-dynamic-stack-layout.ll b/llvm/test/CodeGen/AArch64/aarch64-dynamic-stack-layout.ll index 83b9d0a30ae..fbe5e8e1970 100644 --- a/llvm/test/CodeGen/AArch64/aarch64-dynamic-stack-layout.ll +++ b/llvm/test/CodeGen/AArch64/aarch64-dynamic-stack-layout.ll @@ -522,10 +522,10 @@ bb1: ; CHECK-LABEL: realign_conditional2 ; Extra realignment in the prologue (performance issue). +; CHECK: tbz {{.*}} .[[LABEL:.*]] ; CHECK: sub x9, sp, #32 // =32 ; CHECK: and sp, x9, #0xffffffffffffffe0 ; CHECK: mov x19, sp -; CHECK: tbz {{.*}} .[[LABEL:.*]] ; Stack is realigned in a non-entry BB. ; CHECK: sub [[REG:x[01-9]+]], sp, #64 ; CHECK: and sp, [[REG]], #0xffffffffffffffe0 |
