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209 Commits

Author SHA1 Message Date
Chris Lattner d18b455086 convert to filecheck 
llvm-svn: 91810
 2009-12-21 03:11:05 +00:00
Chris Lattner 406cb75c6b simplify a transformation by making it more general. 
llvm-svn: 83792
 2009-10-11 21:22:21 +00:00
Dan Gohman 72a13d2476 Use opt -S instead of piping bitcode output through llvm-dis. 
llvm-svn: 81257
 2009-09-08 22:34:10 +00:00
Dan Gohman 9737a63ed8 Change these tests to feed the assembly files to opt directly, instead 
of using llvm-as, now that opt supports this.

llvm-svn: 81226
 2009-09-08 16:50:01 +00:00
Chris Lattner 64b5842986 fix PR4837, some bugs folding vector compares. These 
return a vector of i1, not i1 itself.

llvm-svn: 80761
 2009-09-02 05:12:37 +00:00
Chris Lattner f50aa6ae5c Implement rdar://6480391, extending of equality icmp's to avoid a truncation. 
I noticed this in the code compiled for a routine using std::map, which produced
this code:
	%25 = tail call i32 @memcmp(i8* %24, i8* %23, i32 6) nounwind readonly
	%.lobit.i = lshr i32 %25, 31		; <i32> [#uses=1]
	%tmp.i = trunc i32 %.lobit.i to i8		; <i8> [#uses=1]
	%toBool = icmp eq i8 %tmp.i, 0		; <i1> [#uses=1]
	br i1 %toBool, label %bb3, label %bb4
which compiled to:

	call	L_memcmp$stub
	shrl	$31, %eax
	testb	%al, %al
	jne	LBB1_11	## 

with this change, we compile it to:

	call	L_memcmp$stub
	testl	%eax, %eax
	js	LBB1_11

This triggers all the time in common code, with patters like this:

	%169 = and i32 %ply, 1		; <i32> [#uses=1]
	%170 = trunc i32 %169 to i8		; <i8> [#uses=1]
	%toBool = icmp ne i8 %170, 0		; <i1> [#uses=1]

 	%7 = lshr i32 %6, 24		; <i32> [#uses=1]
	%9 = trunc i32 %7 to i8		; <i8> [#uses=1]
	%10 = icmp ne i8 %9, 0		; <i1> [#uses=1]

etc

llvm-svn: 61985
 2009-01-09 07:47:06 +00:00
Reid Spencer 91948d4cad For PR1319: 
Upgrade tests to work with new llvm.exp version of llvm_runtest.

llvm-svn: 36013
 2007-04-14 20:13:02 +00:00
Chris Lattner 81f14c63da sext of compares. 
llvm-svn: 35892
 2007-04-11 06:57:54 +00:00
Chris Lattner 764ec15b3f new testcase 
llvm-svn: 35889
 2007-04-11 06:52:24 +00:00