diff options
Diffstat (limited to 'test/Transforms/LoopIdiom/memset_noidiom.ll')
| -rw-r--r-- | test/Transforms/LoopIdiom/memset_noidiom.ll | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/test/Transforms/LoopIdiom/memset_noidiom.ll b/test/Transforms/LoopIdiom/memset_noidiom.ll new file mode 100644 index 00000000000..168eb95357c --- /dev/null +++ b/test/Transforms/LoopIdiom/memset_noidiom.ll @@ -0,0 +1,30 @@ +; RUN: opt -loop-idiom < %s -S | FileCheck %s +target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64" +target triple = "x86_64-apple-darwin10.0.0" + +; CHECK: @memset +; CHECK-NOT: llvm.memset +define i8* @memset(i8* %b, i32 %c, i64 %len) nounwind uwtable ssp { +entry: + %cmp1 = icmp ult i64 0, %len + br i1 %cmp1, label %for.body.lr.ph, label %for.end + +for.body.lr.ph: ; preds = %entry + %conv6 = trunc i32 %c to i8 + br label %for.body + +for.body: ; preds = %for.body.lr.ph, %for.body + %indvar = phi i64 [ 0, %for.body.lr.ph ], [ %indvar.next, %for.body ] + %p.02 = getelementptr i8* %b, i64 %indvar + store i8 %conv6, i8* %p.02, align 1 + %indvar.next = add i64 %indvar, 1 + %exitcond = icmp ne i64 %indvar.next, %len + br i1 %exitcond, label %for.body, label %for.cond.for.end_crit_edge + +for.cond.for.end_crit_edge: ; preds = %for.body + br label %for.end + +for.end: ; preds = %for.cond.for.end_crit_edge, %entry + ret i8* %b +} + |