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| author | Chris Lattner <sabre@nondot.org> | 2010-02-23 06:09:57 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2010-02-23 06:09:57 +0000 |
| commit | be5ad7dce2e20275a1c4f2d7240d1bf495b9f418 (patch) | |
| tree | d63ba01f8299af17f025e96f14d8f77bdae28448 /lib | |
| parent | 53d09bd0099e2ac400ad5ddcb928ad0d524fbe5c (diff) | |
| download | external_llvm-be5ad7dce2e20275a1c4f2d7240d1bf495b9f418.zip external_llvm-be5ad7dce2e20275a1c4f2d7240d1bf495b9f418.tar.gz external_llvm-be5ad7dce2e20275a1c4f2d7240d1bf495b9f418.tar.bz2 | |
fix a type mismatch in this pattern, where we were using an i64 imm in a
place where an i32 imm was required, the old isel just got lucky.
This fixes CodeGen/X86/x86-64-and-mask.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96894 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Target/X86/X86Instr64bit.td | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/lib/Target/X86/X86Instr64bit.td b/lib/Target/X86/X86Instr64bit.td index 4ea3739..ebaff10 100644 --- a/lib/Target/X86/X86Instr64bit.td +++ b/lib/Target/X86/X86Instr64bit.td @@ -65,12 +65,18 @@ def i64immSExt8 : PatLeaf<(i64 imm), [{ return (int64_t)N->getZExtValue() == (int8_t)N->getZExtValue(); }]>; +def GetLo32XForm : SDNodeXForm<imm, [{ + // Transformation function: get the low 32 bits. + return getI32Imm((unsigned)N->getZExtValue()); +}]>; + def i64immSExt32 : PatLeaf<(i64 imm), [{ // i64immSExt32 predicate - True if the 64-bit immediate fits in a 32-bit // sign extended field. return (int64_t)N->getZExtValue() == (int32_t)N->getZExtValue(); }]>; + def i64immZExt32 : PatLeaf<(i64 imm), [{ // i64immZExt32 predicate - True if the 64-bit immediate fits in a 32-bit // unsignedsign extended field. @@ -1981,7 +1987,7 @@ def : Pat<(and GR64:$src, i64immZExt32:$imm), (i64 0), (AND32ri (EXTRACT_SUBREG GR64:$src, x86_subreg_32bit), - imm:$imm), + (i32 (GetLo32XForm imm:$imm))), x86_subreg_32bit)>; // r & (2^32-1) ==> movz |