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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 | 6ef40b11f8331b80d72e7e5f2670d8e0eb190bb2 (patch) | |
| tree | 1b4034f7225814f405c68627862cb16a112376a1 | |
| parent | 115934eb57d02d4413aea1931a56ca9102d59f0b (diff) | |
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75899 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Target/X86/X86Instr64bit.td | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/Target/X86/X86Instr64bit.td b/lib/Target/X86/X86Instr64bit.td index dd6f984144..c4b25fca2f 100644 --- a/lib/Target/X86/X86Instr64bit.td +++ b/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. |