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| author | Chris Lattner <sabre@nondot.org> | 2009-07-16 06:31:37 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2009-07-16 06:31:37 +0000 |
| commit | d8fc886b1ff4869d92b1f87290eced88e7cfce95 (patch) | |
| tree | b0aa0d38c42a37e8a119f6b3de18dbe0d3600ad6 | |
| parent | 5dd954b6614438e8e7f778e6683fa7df1f88d473 (diff) | |
| download | bcm5719-llvm-d8fc886b1ff4869d92b1f87290eced88e7cfce95.tar.gz bcm5719-llvm-d8fc886b1ff4869d92b1f87290eced88e7cfce95.zip | |
use SUBREG_TO_REG instead of INSERT_SUBREG, this way the code
generator can know the top bits are zero, not undefined.
Thanks to Dan for pointing this out.
llvm-svn: 75899
| -rw-r--r-- | llvm/lib/Target/X86/X86Instr64bit.td | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/llvm/lib/Target/X86/X86Instr64bit.td b/llvm/lib/Target/X86/X86Instr64bit.td index dd6f984144f..c4b25fca2fc 100644 --- a/llvm/lib/Target/X86/X86Instr64bit.td +++ b/llvm/lib/Target/X86/X86Instr64bit.td @@ -1309,7 +1309,7 @@ def Int_CVTTSS2SI64rm: RSSI<0x2C, MRMSrcMem, (outs GR64:$dst), (ins f32mem:$src) // when we have a better way to specify isel priority. let AddedComplexity = 1 in def : Pat<(i64 0), - (INSERT_SUBREG (i64 (IMPLICIT_DEF)), (MOV32r0), x86_subreg_32bit)>; + (SUBREG_TO_REG (i64 0), (MOV32r0), x86_subreg_32bit)>; // Materialize i64 constant where top 32-bits are zero. |
