llvm/test/CodeGen/PowerPC/mulhs.ll
Ehsan Amiri 38caf19333 Adding -verify-machineinstrs option to PowerPC tests
Currently we have a number of tests that fail with -verify-machineinstrs.
To detect this cases earlier we add the option to the testcases with the
exception of tests that will currently fail with this option. PR 27456 keeps
track of this failures.

No code review, as discussed with Hal Finkel.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@277624 91177308-0d34-0410-b5e6-96231b3b80d8
2016-08-03 18:17:35 +00:00

18 lines
643 B
LLVM

; All of these ands and shifts should be folded into rlwimi's
; RUN: llc -verify-machineinstrs < %s -march=ppc32 -o %t
; RUN: not grep mulhwu %t
; RUN: not grep srawi %t
; RUN: not grep add %t
; RUN: grep mulhw %t | count 1
define i32 @mulhs(i32 %a, i32 %b) nounwind {
entry:
%tmp.1 = sext i32 %a to i64 ; <i64> [#uses=1]
%tmp.3 = sext i32 %b to i64 ; <i64> [#uses=1]
%tmp.4 = mul i64 %tmp.3, %tmp.1 ; <i64> [#uses=1]
%tmp.6 = lshr i64 %tmp.4, 32 ; <i64> [#uses=1]
%tmp.7 = trunc i64 %tmp.6 to i32 ; <i32> [#uses=1]
ret i32 %tmp.7
}