mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-19 01:34:32 +00:00
Currently the output should be almost identical to the one produced by CodeGen to make the transition easier. The only two differences I know of are: * Some files get an extra advance loc of size 0. This will be fixed when relaxations are enabled. * The optimization of declaring an EH symbol as an external variable is not implemented. This is a subset of adding the nounwind attribute, so we if really this at -O0 we should probably do it at the IL level. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130623 91177308-0d34-0410-b5e6-96231b3b80d8
18 lines
621 B
LLVM
18 lines
621 B
LLVM
; All of these ands and shifts should be folded into rlwimi's
|
|
; RUN: llc < %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
|
|
}
|
|
|