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authorStephen Hines <srhines@google.com>2015-03-23 12:10:34 -0700
committerStephen Hines <srhines@google.com>2015-03-23 12:10:34 -0700
commitebe69fe11e48d322045d5949c83283927a0d790b (patch)
treec92f1907a6b8006628a4b01615f38264d29834ea /test/CodeGen/PowerPC/ppc64-stackmap-nops.ll
parentb7d2e72b02a4cb8034f32f8247a2558d2434e121 (diff)
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Update aosp/master LLVM for rebase to r230699.
Change-Id: I2b5be30509658cb8266be782de0ab24f9099f9b9
Diffstat (limited to 'test/CodeGen/PowerPC/ppc64-stackmap-nops.ll')
-rw-r--r--test/CodeGen/PowerPC/ppc64-stackmap-nops.ll24
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, ...)
+