[llvm] 39e3683 - [NFC][SCEV] Add test with 'or' with no common bits set
Roman Lebedev via llvm-commits
llvm-commits at lists.llvm.org
Fri Jun 5 02:20:20 PDT 2020
Author: Roman Lebedev
Date: 2020-06-05T12:18:15+03:00
New Revision: 39e3683534c83573da5c8b70c8adfb43948f601f
URL: https://github.com/llvm/llvm-project/commit/39e3683534c83573da5c8b70c8adfb43948f601f
DIFF: https://github.com/llvm/llvm-project/commit/39e3683534c83573da5c8b70c8adfb43948f601f.diff
LOG: [NFC][SCEV] Add test with 'or' with no common bits set
Added:
llvm/test/Analysis/ScalarEvolution/add-like-or.ll
Modified:
Removed:
################################################################################
diff --git a/llvm/test/Analysis/ScalarEvolution/add-like-or.ll b/llvm/test/Analysis/ScalarEvolution/add-like-or.ll
new file mode 100644
index 000000000000..c0be633f2eb3
--- /dev/null
+++ b/llvm/test/Analysis/ScalarEvolution/add-like-or.ll
@@ -0,0 +1,16 @@
+; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py
+; RUN: opt < %s -S -analyze -scalar-evolution | FileCheck %s
+
+define i8 @or-of-constant-with-no-common-bits-set(i8 %x, i8 %y) {
+; CHECK-LABEL: 'or-of-constant-with-no-common-bits-set'
+; CHECK-NEXT: Classifying expressions for: @or-of-constant-with-no-common-bits-set
+; CHECK-NEXT: %t0 = shl i8 %x, 2
+; CHECK-NEXT: --> (4 * %x) U: [0,-3) S: [-128,125)
+; CHECK-NEXT: %r = or i8 %t0, 3
+; CHECK-NEXT: --> (3 + (4 * %x))<nuw><nsw> U: [3,0) S: [-125,-128)
+; CHECK-NEXT: Determining loop execution counts for: @or-of-constant-with-no-common-bits-set
+;
+ %t0 = shl i8 %x, 2
+ %r = or i8 %t0, 3
+ ret i8 %r
+}
More information about the llvm-commits
mailing list