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| author | Craig Topper <craig.topper@intel.com> | 2018-04-30 01:53:12 +0000 |
|---|---|---|
| committer | Craig Topper <craig.topper@intel.com> | 2018-04-30 01:53:12 +0000 |
| commit | 64e7a16fe4e8e16792aae1469f298ab658a13454 (patch) | |
| tree | 9a9ab9b1057922adb08b9013d8d1f1d1a01cfd94 /llvm/lib | |
| parent | b2bf3da15249752cbb0b95507bf3d070fab74491 (diff) | |
| download | bcm5719-llvm-64e7a16fe4e8e16792aae1469f298ab658a13454.tar.gz bcm5719-llvm-64e7a16fe4e8e16792aae1469f298ab658a13454.zip | |
[X86] Remove support for accepting 'fnstsw %eax' and 'fnstsw %al'.
I assume this was done because gas accepted it at one point, but current versions of gas don't.
llvm-svn: 331154
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Target/X86/X86InstrInfo.td | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/llvm/lib/Target/X86/X86InstrInfo.td b/llvm/lib/Target/X86/X86InstrInfo.td index ad743760d53..228c46e6d84 100644 --- a/llvm/lib/Target/X86/X86InstrInfo.td +++ b/llvm/lib/Target/X86/X86InstrInfo.td @@ -3151,10 +3151,7 @@ def : InstAlias<"fsub{r|}p\t{%st(0), $op|$op, st(0)}", (SUB_FPrST0 RST:$op)>; def : InstAlias<"fdiv{|r}p\t{%st(0), $op|$op, st(0)}", (DIVR_FPrST0 RST:$op)>; def : InstAlias<"fdiv{r|}p\t{%st(0), $op|$op, st(0)}", (DIV_FPrST0 RST:$op)>; -// We accept "fnstsw %eax" even though it only writes %ax. -def : InstAlias<"fnstsw\t{%eax|eax}", (FNSTSW16r)>; -def : InstAlias<"fnstsw\t{%al|al}" , (FNSTSW16r)>; -def : InstAlias<"fnstsw" , (FNSTSW16r)>; +def : InstAlias<"fnstsw" , (FNSTSW16r), 0>; // lcall and ljmp aliases. This seems to be an odd mapping in 64-bit mode, but // this is compatible with what GAS does. |
