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Don't use 64-bit versions of MOVMSKPD in CodeGen. The instructions only produce a 1-bit result so we can just use SUBREG_TO_REG to extend the 32-bit versions. 

llvm-svn: 192562
This commit is contained in:
Craig Topper 2013-10-14 00:24:33 +00:00
parent 7af18578f8
commit c4a5a3f65d
1 changed files with 8 additions and 4 deletions
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12
llvm/lib/Target/X86/X86InstrSSE.td
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@ -2731,11 +2731,13 @@ let Predicates = [HasAVX] in {
def : Pat<(i32 (X86fgetsign FR32:$src)),
(VMOVMSKPSrr32 (COPY_TO_REGCLASS FR32:$src, VR128))>;
def : Pat<(i64 (X86fgetsign FR32:$src)),
(VMOVMSKPSrr64 (COPY_TO_REGCLASS FR32:$src, VR128))>;
(SUBREG_TO_REG (i64 0),
(VMOVMSKPSrr32 (COPY_TO_REGCLASS FR32:$src, VR128)), sub_32bit)>;
def : Pat<(i32 (X86fgetsign FR64:$src)),
(VMOVMSKPDrr32 (COPY_TO_REGCLASS FR64:$src, VR128))>;
def : Pat<(i64 (X86fgetsign FR64:$src)),
(VMOVMSKPDrr64 (COPY_TO_REGCLASS FR64:$src, VR128))>;
(SUBREG_TO_REG (i64 0),
(VMOVMSKPDrr32 (COPY_TO_REGCLASS FR64:$src, VR128)), sub_32bit)>;
}
defm MOVMSKPS : sse12_extr_sign_mask<VR128, int_x86_sse_movmsk_ps, "movmskps",
@ -2747,13 +2749,15 @@ def : Pat<(i32 (X86fgetsign FR32:$src)),
(MOVMSKPSrr32 (COPY_TO_REGCLASS FR32:$src, VR128))>,
Requires<[UseSSE1]>;
def : Pat<(i64 (X86fgetsign FR32:$src)),
(MOVMSKPSrr64 (COPY_TO_REGCLASS FR32:$src, VR128))>,
(SUBREG_TO_REG (i64 0),
(MOVMSKPSrr32 (COPY_TO_REGCLASS FR32:$src, VR128)), sub_32bit)>,
Requires<[UseSSE1]>;
def : Pat<(i32 (X86fgetsign FR64:$src)),
(MOVMSKPDrr32 (COPY_TO_REGCLASS FR64:$src, VR128))>,
Requires<[UseSSE2]>;
def : Pat<(i64 (X86fgetsign FR64:$src)),
(MOVMSKPDrr64 (COPY_TO_REGCLASS FR64:$src, VR128))>,
(SUBREG_TO_REG (i64 0),
(MOVMSKPDrr32 (COPY_TO_REGCLASS FR64:$src, VR128)), sub_32bit)>,
Requires<[UseSSE2]>;
//===---------------------------------------------------------------------===//