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

[Nate Begeman]

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

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

Add regression test for efficient codegen of i32 x i32 -> hi32(i64) as
mulhs.


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Diffs of the changes:  (+17 -0)

 mulhs.ll |   17 +++++++++++++++++
 1 files changed, 17 insertions(+)


Index: llvm/test/Regression/CodeGen/PowerPC/mulhs.ll
diff -c /dev/null llvm/test/Regression/CodeGen/PowerPC/mulhs.ll:1.1
*** /dev/null	Wed Aug 31 19:04:13 2005
--- llvm/test/Regression/CodeGen/PowerPC/mulhs.ll	Wed Aug 31 19:04:03 2005
***************
*** 0 ****
--- 1,17 ----
+ ; All of these ands and shifts should be folded into rlwimi's
+ ; RUN: llvm-as < mulhs.ll | llc -march=ppc32 | not grep mulhwu && 
+ ; RUN: llvm-as < mulhs.ll | llc -march=ppc32 | not grep srawi && 
+ ; RUN: llvm-as < mulhs.ll | llc -march=ppc32 | not grep add && 
+ ; RUN: llvm-as < mulhs.ll | llc -march=ppc32 | grep mulhw | wc -l | grep 1
+ 
+ implementation   ; Functions:
+ 
+ int %mulhs(int %a, int %b) {
+ entry:
+         %tmp.1 = cast int %a to ulong           ; <ulong> [#uses=1]
+         %tmp.3 = cast int %b to ulong           ; <ulong> [#uses=1]
+         %tmp.4 = mul ulong %tmp.3, %tmp.1       ; <ulong> [#uses=1]
+         %tmp.6 = shr ulong %tmp.4, ubyte 32     ; <ulong> [#uses=1]
+         %tmp.7 = cast ulong %tmp.6 to int       ; <int> [#uses=1]
+         ret int %tmp.7
+ }