xref: /llvm-project/llvm/test/Transforms/LoopUnroll/RISCV/unroll-Os.ll (revision ffd79b3312cea51c0787aad479ce285771470397)
1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 2
2; RUN: opt < %s -S -mtriple=riscv64 -passes=loop-unroll | FileCheck %s
3
4; Function Attrs: optsize
5define void @foo(ptr %array, i32 %x) #0 {
6; CHECK-LABEL: define void @foo
7; CHECK-SAME: (ptr [[ARRAY:%.*]], i32 [[X:%.*]]) #[[ATTR0:[0-9]+]] {
8; CHECK-NEXT:  entry:
9; CHECK-NEXT:    br label [[FOR_BODY:%.*]]
10; CHECK:       for.body:
11; CHECK-NEXT:    store i32 [[X]], ptr [[ARRAY]], align 4
12; CHECK-NEXT:    [[ARRAYIDX_1:%.*]] = getelementptr inbounds i32, ptr [[ARRAY]], i64 1
13; CHECK-NEXT:    store i32 [[X]], ptr [[ARRAYIDX_1]], align 4
14; CHECK-NEXT:    [[ARRAYIDX_2:%.*]] = getelementptr inbounds i32, ptr [[ARRAY]], i64 2
15; CHECK-NEXT:    store i32 [[X]], ptr [[ARRAYIDX_2]], align 4
16; CHECK-NEXT:    [[ARRAYIDX_3:%.*]] = getelementptr inbounds i32, ptr [[ARRAY]], i64 3
17; CHECK-NEXT:    store i32 [[X]], ptr [[ARRAYIDX_3]], align 4
18; CHECK-NEXT:    ret void
19;
20entry:
21  br label %for.body
22
23for.body:
24  %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
25  %arrayidx = getelementptr inbounds i32, ptr %array, i64 %indvars.iv
26  store i32 %x, ptr %arrayidx, align 4
27  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
28  %exitcond.not = icmp eq i64 %indvars.iv.next, 4
29  br i1 %exitcond.not, label %for.cond.cleanup, label %for.body
30
31for.cond.cleanup:
32  ret void
33}
34
35attributes #0 = { optsize }
36