[NFC][InstCombine] i65 tests for 'check for [no] signed truncation' pattern

Those initially broke chromium build:
https://bugs.llvm.org/show_bug.cgi?id=38204 and
https://crbug.com/864832

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@337364 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Transforms/InstCombine/canonicalize-lack-of-signed-truncation-check.ll b/test/Transforms/InstCombine/canonicalize-lack-of-signed-truncation-check.ll
index 5ed22292aab777ec61756c59938df118ebc9e02b..2e75ae60571a954a308cd8d8ce8a03189a263a02 100644 (file)
--- a/test/Transforms/InstCombine/canonicalize-lack-of-signed-truncation-check.ll
+++ b/test/Transforms/InstCombine/canonicalize-lack-of-signed-truncation-check.ll
@@ -26,6 +26,20 @@ define i1 @p0(i8 %x) {
   ret i1 %tmp2
 }
 
+; Big unusual bit width, https://bugs.llvm.org/show_bug.cgi?id=38204
+define i1 @pb(i65 %x) {
+; CHECK-LABEL: @pb(
+; CHECK-NEXT:    [[TMP0:%.*]] = shl i65 [[X:%.*]], 1
+; CHECK-NEXT:    [[TMP1:%.*]] = ashr exact i65 [[TMP0]], 1
+; CHECK-NEXT:    [[TMP2:%.*]] = icmp eq i65 [[TMP1]], [[X]]
+; CHECK-NEXT:    ret i1 [[TMP2]]
+;
+  %tmp0 = shl i65 %x, 1
+  %tmp1 = ashr exact i65 %tmp0, 1
+  %tmp2 = icmp eq i65 %x, %tmp1
+  ret i1 %tmp2
+}
+
 ; ============================================================================ ;
 ; Vector tests
 ; ============================================================================ ;

diff --git a/test/Transforms/InstCombine/canonicalize-signed-truncation-check.ll b/test/Transforms/InstCombine/canonicalize-signed-truncation-check.ll
index ca08a33ae99d1bfde789c05bbded8880d1ab2f77..6cd32db822440f5febf3487047061ae9c31a149b 100644 (file)
--- a/test/Transforms/InstCombine/canonicalize-signed-truncation-check.ll
+++ b/test/Transforms/InstCombine/canonicalize-signed-truncation-check.ll
@@ -26,6 +26,20 @@ define i1 @p0(i8 %x) {
   ret i1 %tmp2
 }
 
+; Big unusual bit width, https://bugs.llvm.org/show_bug.cgi?id=38204
+define i1 @pb(i65 %x) {
+; CHECK-LABEL: @pb(
+; CHECK-NEXT:    [[TMP0:%.*]] = shl i65 [[X:%.*]], 1
+; CHECK-NEXT:    [[TMP1:%.*]] = ashr exact i65 [[TMP0]], 1
+; CHECK-NEXT:    [[TMP2:%.*]] = icmp ne i65 [[TMP1]], [[X]]
+; CHECK-NEXT:    ret i1 [[TMP2]]
+;
+  %tmp0 = shl i65 %x, 1
+  %tmp1 = ashr exact i65 %tmp0, 1
+  %tmp2 = icmp ne i65 %x, %tmp1
+  ret i1 %tmp2
+}
+
 ; ============================================================================ ;
 ; Vector tests
 ; ============================================================================ ;