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| author | Craig Topper <craig.topper@gmail.com> | 2013-10-14 00:24:33 +0000 |
|---|---|---|
| committer | Craig Topper <craig.topper@gmail.com> | 2013-10-14 00:24:33 +0000 |
| commit | eefca967925d2b8cbb3ed3a24930717ea315b56e (patch) | |
| tree | 56c37c44a2cff751eb64968280ff2f72d52c1424 /lib | |
| parent | 9f27a47ff1b00f4d34529ca4b7fbb84292c523c6 (diff) | |
| download | external_llvm-eefca967925d2b8cbb3ed3a24930717ea315b56e.zip external_llvm-eefca967925d2b8cbb3ed3a24930717ea315b56e.tar.gz external_llvm-eefca967925d2b8cbb3ed3a24930717ea315b56e.tar.bz2 | |
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192562 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Target/X86/X86InstrSSE.td | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/lib/Target/X86/X86InstrSSE.td b/lib/Target/X86/X86InstrSSE.td index 6d00c54..6f7e913 100644 --- a/lib/Target/X86/X86InstrSSE.td +++ b/lib/Target/X86/X86InstrSSE.td @@ -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]>; //===---------------------------------------------------------------------===// |