6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-11-01 15:17:25 +00:00
Code Issues Projects Releases Wiki Activity

[SLSR] handles non-canonicalized Mul candidates

Browse Source 
such as (2 + B) * S.

Tested by @non_canonicalized in slsr-mul.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237216 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jingyue Wu
2015-05-13 00:03:17 +00:00
parent ead2d1fbe0
commit 3062272092
2 changed files with 23 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

21
test/Transforms/StraightLineStrengthReduce/slsr-mul.ll
View File

@@ -23,6 +23,27 @@ define void @slsr1(i32 %b, i32 %s) {
ret void
}
define void @non_canonicalized(i32 %b, i32 %s) {
; CHECK-LABEL: @non_canonicalized(
; foo(b * s);
%mul0 = mul i32 %b, %s
; CHECK: mul i32
; CHECK-NOT: mul i32
call void @foo(i32 %mul0)
; foo((1 + b) * s);
%b1 = add i32 1, %b
%mul1 = mul i32 %b1, %s
call void @foo(i32 %mul1)
; foo((2 + b) * s);
%b2 = add i32 2, %b
%mul2 = mul i32 %b2, %s
call void @foo(i32 %mul2)
ret void
}
; foo(a * b)
; foo((a + 1) * b)
; foo(a * (b + 1))