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Diffstat (limited to 'test/CodeGen/AArch64/arm64-patchpoint-scratch-regs.ll')
| -rw-r--r-- | test/CodeGen/AArch64/arm64-patchpoint-scratch-regs.ll | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/test/CodeGen/AArch64/arm64-patchpoint-scratch-regs.ll b/test/CodeGen/AArch64/arm64-patchpoint-scratch-regs.ll new file mode 100644 index 0000000..d39722b --- /dev/null +++ b/test/CodeGen/AArch64/arm64-patchpoint-scratch-regs.ll @@ -0,0 +1,18 @@ +; RUN: llc -mtriple=arm64-apple-darwin -enable-misched=0 -mcpu=cyclone < %s | FileCheck %s + +; Test that scratch registers are spilled around patchpoints +; CHECK: InlineAsm End +; CHECK-NEXT: mov x{{[0-9]+}}, x16 +; CHECK-NEXT: mov x{{[0-9]+}}, x17 +; CHECK-NEXT: Ltmp +; CHECK-NEXT: nop +define void @clobberScratch(i32* %p) { + %v = load i32* %p + tail call void asm sideeffect "nop", "~{x0},~{x1},~{x2},~{x3},~{x4},~{x5},~{x6},~{x7},~{x8},~{x9},~{x10},~{x11},~{x12},~{x13},~{x14},~{x15},~{x18},~{x19},~{x20},~{x21},~{x22},~{x23},~{x24},~{x25},~{x26},~{x27},~{x28},~{x29},~{x30},~{x31}"() nounwind + tail call void (i64, i32, i8*, i32, ...)* @llvm.experimental.patchpoint.void(i64 5, i32 20, i8* null, i32 0, i32* %p, i32 %v) + store i32 %v, i32* %p + ret void +} + +declare void @llvm.experimental.patchpoint.void(i64, i32, i8*, i32, ...) + |