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Diffstat (limited to 'test/CodeGen/PowerPC/ppc64-stackmap-nops.ll')
| -rw-r--r-- | test/CodeGen/PowerPC/ppc64-stackmap-nops.ll | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/test/CodeGen/PowerPC/ppc64-stackmap-nops.ll b/test/CodeGen/PowerPC/ppc64-stackmap-nops.ll new file mode 100644 index 0000000..368ddc5 --- /dev/null +++ b/test/CodeGen/PowerPC/ppc64-stackmap-nops.ll @@ -0,0 +1,24 @@ +; RUN: llc < %s -mtriple=powerpc64-unknown-gnu-linux | FileCheck %s + +define void @test_shadow_optimization() { +entry: +; Expect 12 bytes worth of nops here rather than 32: With the shadow optimization +; in place, 20 bytes will be consumed by the frame teardown and return instr. +; CHECK-LABEL: test_shadow_optimization: + +; CHECK: nop +; CHECK-NEXT: nop +; CHECK-NEXT: nop +; CHECK-NOT: nop +; CHECK: addi 1, 1, 64 +; CHECK: ld [[REG1:[0-9]+]], 16(1) +; CHECK: ld 31, -8(1) +; CHECK: mtlr [[REG1]] +; CHECK: blr + + tail call void (i64, i32, ...)* @llvm.experimental.stackmap(i64 0, i32 32) + ret void +} + +declare void @llvm.experimental.stackmap(i64, i32, ...) + |