[PATCH] D25500: AMDGPU: Workaround for instruction size with literals
Matt Arsenault via llvm-commits
llvm-commits at lists.llvm.org
Fri Oct 14 09:52:13 PDT 2016
arsenm updated this revision to Diff 74707.
arsenm added a comment.
Attach right patch
https://reviews.llvm.org/D25500
Files:
lib/Target/AMDGPU/SIInstrInfo.cpp
Index: lib/Target/AMDGPU/SIInstrInfo.cpp
===================================================================
--- lib/Target/AMDGPU/SIInstrInfo.cpp
+++ lib/Target/AMDGPU/SIInstrInfo.cpp
@@ -3449,7 +3449,10 @@
// If we have a definitive size, we can use it. Otherwise we need to inspect
// the operands to know the size.
- if (DescSize != 0)
+ //
+ // FIXME: Instructions that have a base 32-bit encoding report their size as
+ // 4, even though they are really 8 bytes if they have a literal operand.
+ if (DescSize != 0 && DescSize != 4)
return DescSize;
// 4-byte instructions may have a 32-bit literal encoded after them. Check
@@ -3472,6 +3475,9 @@
return 4;
}
+ if (DescSize == 4)
+ return 4;
+
switch (Opc) {
case TargetOpcode::IMPLICIT_DEF:
case TargetOpcode::KILL:
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