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[X86] Remove IntrArgMemOnly from ldmxcsr intrinsic.
author
Craig Topper
<craig.topper@sifive.com>
Sat, 9 Jan 2021 01:47:12 +0000
(17:47 -0800)
committer
Craig Topper
<craig.topper@sifive.com>
Sat, 9 Jan 2021 01:50:28 +0000
(17:50 -0800)
Since we're leaving this as ReadWrite with the "write" reflecting
the update to MXCSR, we shouldn't say it only writes arg memory.
Hopefully this fixes the issue reported in post-commit in D93571.
llvm/include/llvm/IR/IntrinsicsX86.td
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diff --git
a/llvm/include/llvm/IR/IntrinsicsX86.td
b/llvm/include/llvm/IR/IntrinsicsX86.td
index
68b076c
..
bba1213
100644
(file)
--- a/
llvm/include/llvm/IR/IntrinsicsX86.td
+++ b/
llvm/include/llvm/IR/IntrinsicsX86.td
@@
-286,7
+286,7
@@
let TargetPrefix = "x86" in { // All intrinsics start with "llvm.x86.".
// FIXME: LDMXCSR does not actually write to memory,
// but intrinsic properties are generated incorrectly
// for IntrReadMem+IntrHasSideEffects.
- [/*IntrReadMem,
*/ IntrArgMemOnly,
IntrHasSideEffects]>;
+ [/*IntrReadMem,
IntrArgMemOnly,*/
IntrHasSideEffects]>;
}
// Misc.