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-rw-r--r--test/MC/X86/stackmap-nops.ll4
1 files changed, 4 insertions, 0 deletions
diff --git a/test/MC/X86/stackmap-nops.ll b/test/MC/X86/stackmap-nops.ll
index 98d17ea..a0d4418 100644
--- a/test/MC/X86/stackmap-nops.ll
+++ b/test/MC/X86/stackmap-nops.ll
@@ -41,6 +41,10 @@ entry:
tail call void (i64, i32, ...)* @llvm.experimental.stackmap(i64 13, i32 13)
tail call void (i64, i32, ...)* @llvm.experimental.stackmap(i64 14, i32 14)
tail call void (i64, i32, ...)* @llvm.experimental.stackmap(i64 15, i32 15)
+; Add an extra stackmap with a zero-length shadow to thwart the shadow
+; optimization. This will force all 15 bytes of the previous shadow to be
+; padded with nops.
+ tail call void (i64, i32, ...)* @llvm.experimental.stackmap(i64 16, i32 0)
ret void
}