diff options
Diffstat (limited to 'llvm/test/Analysis/ScalarEvolution/overflow-intrinsics-trip-count.ll')
| -rw-r--r-- | llvm/test/Analysis/ScalarEvolution/overflow-intrinsics-trip-count.ll | 40 |
1 files changed, 25 insertions, 15 deletions
diff --git a/llvm/test/Analysis/ScalarEvolution/overflow-intrinsics-trip-count.ll b/llvm/test/Analysis/ScalarEvolution/overflow-intrinsics-trip-count.ll index 942f312599da..38372c94e3ea 100644 --- a/llvm/test/Analysis/ScalarEvolution/overflow-intrinsics-trip-count.ll +++ b/llvm/test/Analysis/ScalarEvolution/overflow-intrinsics-trip-count.ll @@ -167,9 +167,11 @@ for.end: ; preds = %for.body, %entry define void @uadd_symbolic_start(i16 %start) { ; CHECK-LABEL: 'uadd_symbolic_start' ; CHECK-NEXT: Determining loop execution counts for: @uadd_symbolic_start -; CHECK-NEXT: Loop %for.body: Unpredictable backedge-taken count. -; CHECK-NEXT: Loop %for.body: Unpredictable max backedge-taken count. -; CHECK-NEXT: Loop %for.body: Unpredictable predicated backedge-taken count. +; CHECK-NEXT: Loop %for.body: backedge-taken count is (-1 + (-1 * %start)) +; CHECK-NEXT: Loop %for.body: max backedge-taken count is -1 +; CHECK-NEXT: Loop %for.body: Predicated backedge-taken count is (-1 + (-1 * %start)) +; CHECK-NEXT: Predicates: +; CHECK: Loop %for.body: Trip multiple is 1 ; entry: br i1 undef, label %for.end, label %for.body.preheader @@ -191,9 +193,11 @@ for.end: ; preds = %for.body, %entry define void @sadd_symbolic_start(i16 %start) { ; CHECK-LABEL: 'sadd_symbolic_start' ; CHECK-NEXT: Determining loop execution counts for: @sadd_symbolic_start -; CHECK-NEXT: Loop %for.body: Unpredictable backedge-taken count. -; CHECK-NEXT: Loop %for.body: Unpredictable max backedge-taken count. -; CHECK-NEXT: Loop %for.body: Unpredictable predicated backedge-taken count. +; CHECK-NEXT: Loop %for.body: backedge-taken count is (32767 + (-1 * %start)) +; CHECK-NEXT: Loop %for.body: max backedge-taken count is -1 +; CHECK-NEXT: Loop %for.body: Predicated backedge-taken count is (32767 + (-1 * %start)) +; CHECK-NEXT: Predicates: +; CHECK: Loop %for.body: Trip multiple is 1 ; entry: br i1 undef, label %for.end, label %for.body.preheader @@ -264,9 +268,11 @@ for.end: ; preds = %for.body, %entry define void @usub_symbolic_start(i16 %start) { ; CHECK-LABEL: 'usub_symbolic_start' ; CHECK-NEXT: Determining loop execution counts for: @usub_symbolic_start -; CHECK-NEXT: Loop %for.body: Unpredictable backedge-taken count. -; CHECK-NEXT: Loop %for.body: Unpredictable max backedge-taken count. -; CHECK-NEXT: Loop %for.body: Unpredictable predicated backedge-taken count. +; CHECK-NEXT: Loop %for.body: backedge-taken count is %start +; CHECK-NEXT: Loop %for.body: max backedge-taken count is -1 +; CHECK-NEXT: Loop %for.body: Predicated backedge-taken count is %start +; CHECK-NEXT: Predicates: +; CHECK: Loop %for.body: Trip multiple is 1 ; entry: br i1 undef, label %for.end, label %for.body.preheader @@ -288,9 +294,11 @@ for.end: ; preds = %for.body, %entry define void @ssub_symbolic_start(i16 %start) { ; CHECK-LABEL: 'ssub_symbolic_start' ; CHECK-NEXT: Determining loop execution counts for: @ssub_symbolic_start -; CHECK-NEXT: Loop %for.body: Unpredictable backedge-taken count. -; CHECK-NEXT: Loop %for.body: Unpredictable max backedge-taken count. -; CHECK-NEXT: Loop %for.body: Unpredictable predicated backedge-taken count. +; CHECK-NEXT: Loop %for.body: backedge-taken count is (-32768 + %start) +; CHECK-NEXT: Loop %for.body: max backedge-taken count is -1 +; CHECK-NEXT: Loop %for.body: Predicated backedge-taken count is (-32768 + %start) +; CHECK-NEXT: Predicates: +; CHECK: Loop %for.body: Trip multiple is 1 ; entry: br i1 undef, label %for.end, label %for.body.preheader @@ -360,11 +368,13 @@ for.end: ; preds = %for.body, %entry define void @sadd_symbolic_non_latch(i16 %start) { ; CHECK-LABEL: 'sadd_symbolic_non_latch' ; CHECK-NEXT: Determining loop execution counts for: @sadd_symbolic_non_latch -; CHECK-NEXT: Loop %for.body: <multiple exits> Unpredictable backedge-taken count. -; CHECK-NEXT: exit count for for.body: ***COULDNOTCOMPUTE*** +; CHECK-NEXT: Loop %for.body: <multiple exits> backedge-taken count is ((230 + (-1 * %start)) umin (32767 + (-1 * %start))) +; CHECK-NEXT: exit count for for.body: (32767 + (-1 * %start)) ; CHECK-NEXT: exit count for for.latch: (230 + (-1 * %start)) ; CHECK-NEXT: Loop %for.body: max backedge-taken count is -1 -; CHECK-NEXT: Loop %for.body: Unpredictable predicated backedge-taken count. +; CHECK-NEXT: Loop %for.body: Predicated backedge-taken count is ((230 + (-1 * %start)) umin (32767 + (-1 * %start))) +; CHECK-NEXT: Predicates: +; CHECK: Loop %for.body: Trip multiple is 1 ; entry: br i1 undef, label %for.end, label %for.body.preheader |