xref: /llvm-project/llvm/test/Transforms/DivRemPairs/MSP430/div-rem-pairs.ll (revision 88e85aa580062c0f2b5882eef71bed498a6af159)
1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2; RUN: opt < %s -passes=div-rem-pairs -S -mtriple=msp430-unknown-unknown | FileCheck %s
3
4; Do not hoist to the common predecessor block since we don't
5; have a div-rem operation.
6
7define i32 @no_domination(i1 %cmp, i32 %a, i32 %b) {
8; CHECK-LABEL: @no_domination(
9; CHECK-NEXT:  entry:
10; CHECK-NEXT:    br i1 [[CMP:%.*]], label [[IF:%.*]], label [[ELSE:%.*]]
11; CHECK:       if:
12; CHECK-NEXT:    [[DIV:%.*]] = sdiv i32 [[A:%.*]], [[B:%.*]]
13; CHECK-NEXT:    br label [[END:%.*]]
14; CHECK:       else:
15; CHECK-NEXT:    [[REM:%.*]] = srem i32 [[A]], [[B]]
16; CHECK-NEXT:    br label [[END]]
17; CHECK:       end:
18; CHECK-NEXT:    [[RET:%.*]] = phi i32 [ [[DIV]], [[IF]] ], [ [[REM]], [[ELSE]] ]
19; CHECK-NEXT:    ret i32 [[RET]]
20;
21entry:
22  br i1 %cmp, label %if, label %else
23
24if:
25  %div = sdiv i32 %a, %b
26  br label %end
27
28else:
29  %rem = srem i32 %a, %b
30  br label %end
31
32end:
33  %ret = phi i32 [ %div, %if ], [ %rem, %else ]
34  ret i32 %ret
35}
36