[llvm-commits] [llvm] r48777 - in /llvm/trunk: lib/Target/X86/X86InstrInfo.cpp test/CodeGen/X86/2008-01-08-SchedulerCrash.ll

[Dan Gohman]

Author: djg
Date: Tue Mar 25 11:53:19 2008
New Revision: 48777

URL: http://llvm.org/viewvc/llvm-project?rev=48777&view=rev
Log:
Add CMP32mr and friends to the load-unfolding table. Among
other things, this allows the scheduler to unfold a load operand
in the 2008-01-08-SchedulerCrash.ll testcase, so it now successfully
clones the comparison to avoid a pushf+popf.

Modified:
    llvm/trunk/lib/Target/X86/X86InstrInfo.cpp
    llvm/trunk/test/CodeGen/X86/2008-01-08-SchedulerCrash.ll

Modified: llvm/trunk/lib/Target/X86/X86InstrInfo.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86InstrInfo.cpp?rev=48777&r1=48776&r2=48777&view=diff

==============================================================================
--- llvm/trunk/lib/Target/X86/X86InstrInfo.cpp (original)
+++ llvm/trunk/lib/Target/X86/X86InstrInfo.cpp Tue Mar 25 11:53:19 2008
@@ -222,11 +222,15 @@
     { X86::CALL64r,     X86::CALL64m, 1 },
     { X86::CMP16ri,     X86::CMP16mi, 1 },
     { X86::CMP16ri8,    X86::CMP16mi8, 1 },
+    { X86::CMP16rr,     X86::CMP16mr, 1 },
     { X86::CMP32ri,     X86::CMP32mi, 1 },
     { X86::CMP32ri8,    X86::CMP32mi8, 1 },
+    { X86::CMP32rr,     X86::CMP32mr, 1 },
     { X86::CMP64ri32,   X86::CMP64mi32, 1 },
     { X86::CMP64ri8,    X86::CMP64mi8, 1 },
+    { X86::CMP64rr,     X86::CMP64mr, 1 },
     { X86::CMP8ri,      X86::CMP8mi, 1 },
+    { X86::CMP8rr,      X86::CMP8mr, 1 },
     { X86::DIV16r,      X86::DIV16m, 1 },
     { X86::DIV32r,      X86::DIV32m, 1 },
     { X86::DIV64r,      X86::DIV64m, 1 },

Modified: llvm/trunk/test/CodeGen/X86/2008-01-08-SchedulerCrash.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/2008-01-08-SchedulerCrash.ll?rev=48777&r1=48776&r2=48777&view=diff

==============================================================================
--- llvm/trunk/test/CodeGen/X86/2008-01-08-SchedulerCrash.ll (original)
+++ llvm/trunk/test/CodeGen/X86/2008-01-08-SchedulerCrash.ll Tue Mar 25 11:53:19 2008
@@ -1,4 +1,4 @@
-; RUN: llvm-as < %s | llc -march=x86
+; RUN: llvm-as < %s | llc -march=x86 | not grep pushf
 
 	%struct.indexentry = type { i32, i8*, i8*, i8*, i8*, i8* }