[llvm-commits] CVS: llvm/test/Regression/CodeGen/PowerPC/rlwinm2.ll

[Nate Begeman]

Changes in directory llvm/test/Regression/CodeGen/PowerPC:

rlwinm2.ll added (r1.1)
---
Log message:

Testcase for better rotate left and mask support


---
Diffs of the changes:  (+30 -0)

 rlwinm2.ll |   30 ++++++++++++++++++++++++++++++
 1 files changed, 30 insertions(+)


Index: llvm/test/Regression/CodeGen/PowerPC/rlwinm2.ll
diff -c /dev/null llvm/test/Regression/CodeGen/PowerPC/rlwinm2.ll:1.1
*** /dev/null	Fri Sep 22 00:50:07 2006
--- llvm/test/Regression/CodeGen/PowerPC/rlwinm2.ll	Fri Sep 22 00:49:57 2006
***************
*** 0 ****
--- 1,30 ----
+ ; All of these ands and shifts should be folded into rlw[i]nm instructions
+ ; RUN: llvm-as < %s | llc -march=ppc32 | not grep and && 
+ ; RUN: llvm-as < %s | llc -march=ppc32 | not grep srawi && 
+ ; RUN: llvm-as < %s | llc -march=ppc32 | not grep srwi && 
+ ; RUN: llvm-as < %s | llc -march=ppc32 | not grep slwi && 
+ ; RUN: llvm-as < %s | llc -march=ppc32 | grep rlwnm | wc -l | grep 1 &&
+ ; RUN: llvm-as < %s | llc -march=ppc32 | grep rlwinm | wc -l | grep 1
+ 
+ 
+ implementation   ; Functions:
+ 
+ uint %test1(uint %X, int %Y) {
+ entry:
+ 	%tmp = cast int %Y to ubyte		; <ubyte> [#uses=2]
+ 	%tmp1 = shl uint %X, ubyte %tmp		; <uint> [#uses=1]
+ 	%tmp2 = sub ubyte 32, %tmp		; <ubyte> [#uses=1]
+ 	%tmp3 = shr uint %X, ubyte %tmp2		; <uint> [#uses=1]
+ 	%tmp4 = or uint %tmp1, %tmp3		; <uint> [#uses=1]
+ 	%tmp6 = and uint %tmp4, 127		; <uint> [#uses=1]
+ 	ret uint %tmp6
+ }
+ 
+ uint %test2(uint %X) {
+ entry:
+ 	%tmp1 = shr uint %X, ubyte 27		; <uint> [#uses=1]
+ 	%tmp2 = shl uint %X, ubyte 5		; <uint> [#uses=1]
+ 	%tmp2.masked = and uint %tmp2, 96		; <uint> [#uses=1]
+ 	%tmp5 = or uint %tmp1, %tmp2.masked		; <uint> [#uses=1]
+ 	ret uint %tmp5
+ }