[PATCH 1/2] R600/SI: remove nonsense select pattern

Tom Stellard tom at stellard.net
Thu Apr 25 10:13:40 PDT 2013


From: Christian König <christian.koenig at amd.com>

Fortunately this pattern never matched, otherwise
we would have generated incorrect code.

Signed-off-by: Christian K??nig <christian.koenig at amd.com>
---
 lib/Target/R600/SIInstructions.td | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/lib/Target/R600/SIInstructions.td b/lib/Target/R600/SIInstructions.td
index 9faf89b..7caafce 100644
--- a/lib/Target/R600/SIInstructions.td
+++ b/lib/Target/R600/SIInstructions.td
@@ -1026,18 +1026,11 @@ def S_MAX_U32 : SOP2_32 <0x00000009, "S_MAX_U32", []>;
 def S_CSELECT_B32 : SOP2 <
   0x0000000a, (outs SReg_32:$dst),
   (ins SReg_32:$src0, SReg_32:$src1, SCCReg:$scc), "S_CSELECT_B32",
-  [(set (i32 SReg_32:$dst), (select (i1 SCCReg:$scc),
-                                     SReg_32:$src0, SReg_32:$src1))]
+  []
 >;
 
 def S_CSELECT_B64 : SOP2_64 <0x0000000b, "S_CSELECT_B64", []>;
 
-// f32 pattern for S_CSELECT_B32
-def : Pat <
-  (f32 (select (i1 SCCReg:$scc), SReg_32:$src0, SReg_32:$src1)),
-  (S_CSELECT_B32 SReg_32:$src0, SReg_32:$src1, SCCReg:$scc)
->;
-
 def S_AND_B32 : SOP2_32 <0x0000000e, "S_AND_B32", []>;
 
 def S_AND_B64 : SOP2_64 <0x0000000f, "S_AND_B64",
-- 
1.8.1.5





More information about the llvm-commits mailing list