diff options
Diffstat (limited to 'llvm')
| -rw-r--r-- | llvm/lib/Target/AArch64/AArch64InstrInfo.cpp | 7 | ||||
| -rw-r--r-- | llvm/test/CodeGen/AArch64/machine-outliner.ll | 15 |
2 files changed, 22 insertions, 0 deletions
diff --git a/llvm/lib/Target/AArch64/AArch64InstrInfo.cpp b/llvm/lib/Target/AArch64/AArch64InstrInfo.cpp index 6de4bb2143d..ee81c16c260 100644 --- a/llvm/lib/Target/AArch64/AArch64InstrInfo.cpp +++ b/llvm/lib/Target/AArch64/AArch64InstrInfo.cpp @@ -4989,6 +4989,13 @@ bool AArch64InstrInfo::isFunctionSafeToOutlineFrom( if (!OutlineFromLinkOnceODRs && F.hasLinkOnceODRLinkage()) return false; + // Don't outline from functions with section markings; the program could + // expect that all the code is in the named section. + // FIXME: Allow outlining from multiple functions with the same section + // marking. + if (F.hasSection()) + return false; + // Outlining from functions with redzones is unsafe since the outliner may // modify the stack. Check if hasRedZone is true or unknown; if yes, don't // outline from it. diff --git a/llvm/test/CodeGen/AArch64/machine-outliner.ll b/llvm/test/CodeGen/AArch64/machine-outliner.ll index 9bea4e2e8d0..d8d8ddeded9 100644 --- a/llvm/test/CodeGen/AArch64/machine-outliner.ll +++ b/llvm/test/CodeGen/AArch64/machine-outliner.ll @@ -17,6 +17,21 @@ define linkonce_odr void @fish() #0 { ret void } +define void @turtle() section "TURTLE,turtle" { + ; CHECK-LABEL: _turtle: + ; ODR-LABEL: _turtle: + ; CHECK-NOT: OUTLINED + %1 = alloca i32, align 4 + %2 = alloca i32, align 4 + %3 = alloca i32, align 4 + %4 = alloca i32, align 4 + store i32 0, i32* %1, align 4 + store i32 1, i32* %2, align 4 + store i32 2, i32* %3, align 4 + store i32 3, i32* %4, align 4 + ret void +} + define void @cat() #0 { ; CHECK-LABEL: _cat: ; CHECK: [[OUTLINED:OUTLINED_FUNCTION_[0-9]+]] |
