diff options
| -rw-r--r-- | llvm/lib/Target/AMDGPU/R600AsmPrinter.cpp | 4 | ||||
| -rw-r--r-- | llvm/test/CodeGen/AMDGPU/r600.func-alignment.ll | 13 |
2 files changed, 17 insertions, 0 deletions
diff --git a/llvm/lib/Target/AMDGPU/R600AsmPrinter.cpp b/llvm/lib/Target/AMDGPU/R600AsmPrinter.cpp index 37ecbf7a869..ea247a07329 100644 --- a/llvm/lib/Target/AMDGPU/R600AsmPrinter.cpp +++ b/llvm/lib/Target/AMDGPU/R600AsmPrinter.cpp @@ -103,6 +103,10 @@ void R600AsmPrinter::EmitProgramInfoR600(const MachineFunction &MF) { bool R600AsmPrinter::runOnMachineFunction(MachineFunction &MF) { + + // Functions needs to be cacheline (256B) aligned. + MF.ensureAlignment(8); + SetupMachineFunction(MF); MCContext &Context = getObjFileLowering().getContext(); diff --git a/llvm/test/CodeGen/AMDGPU/r600.func-alignment.ll b/llvm/test/CodeGen/AMDGPU/r600.func-alignment.ll new file mode 100644 index 00000000000..d8db3061d37 --- /dev/null +++ b/llvm/test/CodeGen/AMDGPU/r600.func-alignment.ll @@ -0,0 +1,13 @@ +; RUN: llc < %s -march=r600 -mcpu=redwood | FileCheck %s +; RUN: llc < %s -march=r600 -mcpu=rs880 | FileCheck %s + +; CHECK: .globl test +; Functions need to be cacheline (256B) aligned to prevent GPU hangs +; CHECK: .p2align 8 +; CHECK: {{^}}test: +; CHECK: CF_END + +define amdgpu_ps void @test(<4 x float> inreg %reg0) { +entry: + ret void +} |
