108 lines
2.9 KiB
LLVM
108 lines
2.9 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -passes=instcombine -S | FileCheck %s
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declare void @use.i8(i8)
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define i1 @sdiv_exact_eq_0(i8 %x, i8 %y) {
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; CHECK-LABEL: @sdiv_exact_eq_0(
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; CHECK-NEXT: [[R:%.*]] = icmp eq i8 [[X:%.*]], 0
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; CHECK-NEXT: ret i1 [[R]]
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;
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%d = sdiv exact i8 %x, %y
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%r = icmp eq i8 %d, 0
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ret i1 %r
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}
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define i1 @udiv_exact_ne_0(i8 %x, i8 %y) {
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; CHECK-LABEL: @udiv_exact_ne_0(
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; CHECK-NEXT: [[R:%.*]] = icmp ne i8 [[X:%.*]], 0
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; CHECK-NEXT: ret i1 [[R]]
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;
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%d = udiv exact i8 %x, %y
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%r = icmp ne i8 %d, 0
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ret i1 %r
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}
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define i1 @sdiv_exact_ne_1(i8 %x, i8 %y) {
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; CHECK-LABEL: @sdiv_exact_ne_1(
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; CHECK-NEXT: [[R:%.*]] = icmp eq i8 [[X:%.*]], 0
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; CHECK-NEXT: ret i1 [[R]]
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;
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%d = sdiv exact i8 %x, %y
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%r = icmp eq i8 %d, 0
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ret i1 %r
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}
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define i1 @udiv_exact_eq_1(i8 %x, i8 %y) {
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; CHECK-LABEL: @udiv_exact_eq_1(
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; CHECK-NEXT: [[R:%.*]] = icmp ne i8 [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: ret i1 [[R]]
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;
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%d = udiv exact i8 %x, %y
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%r = icmp ne i8 %d, 1
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ret i1 %r
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}
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define i1 @sdiv_exact_eq_9_no_of(i8 %x, i8 %y) {
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; CHECK-LABEL: @sdiv_exact_eq_9_no_of(
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; CHECK-NEXT: [[YY:%.*]] = and i8 [[Y:%.*]], 7
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; CHECK-NEXT: [[TMP1:%.*]] = mul nuw nsw i8 [[YY]], 9
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; CHECK-NEXT: [[R:%.*]] = icmp eq i8 [[TMP1]], [[X:%.*]]
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; CHECK-NEXT: ret i1 [[R]]
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;
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%yy = and i8 %y, 7
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%d = sdiv exact i8 %x, %yy
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%r = icmp eq i8 %d, 9
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ret i1 %r
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}
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define i1 @sdiv_exact_eq_9_may_of(i8 %x, i8 %y) {
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; CHECK-LABEL: @sdiv_exact_eq_9_may_of(
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; CHECK-NEXT: [[D:%.*]] = sdiv exact i8 [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: [[R:%.*]] = icmp eq i8 [[D]], 9
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; CHECK-NEXT: ret i1 [[R]]
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;
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%d = sdiv exact i8 %x, %y
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%r = icmp eq i8 %d, 9
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ret i1 %r
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}
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define i1 @sdiv_exact_eq_9_no_of_fail_multiuse(i8 %x, i8 %y) {
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; CHECK-LABEL: @sdiv_exact_eq_9_no_of_fail_multiuse(
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; CHECK-NEXT: [[YY:%.*]] = and i8 [[Y:%.*]], 7
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; CHECK-NEXT: [[D:%.*]] = sdiv exact i8 [[X:%.*]], [[YY]]
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; CHECK-NEXT: call void @use.i8(i8 [[D]])
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; CHECK-NEXT: [[R:%.*]] = icmp eq i8 [[D]], 9
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; CHECK-NEXT: ret i1 [[R]]
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;
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%yy = and i8 %y, 7
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%d = sdiv exact i8 %x, %yy
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call void @use.i8(i8 %d)
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%r = icmp eq i8 %d, 9
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ret i1 %r
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}
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define i1 @sdiv_exact_eq_9_must_of_todo_is_false(i8 %x, i8 %y) {
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; CHECK-LABEL: @sdiv_exact_eq_9_must_of_todo_is_false(
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; CHECK-NEXT: [[YY:%.*]] = or i8 [[Y:%.*]], 55
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; CHECK-NEXT: [[D:%.*]] = sdiv exact i8 [[X:%.*]], [[YY]]
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; CHECK-NEXT: [[R:%.*]] = icmp eq i8 [[D]], 9
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; CHECK-NEXT: ret i1 [[R]]
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;
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%yy = or i8 %y, 55
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%d = sdiv exact i8 %x, %yy
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%r = icmp eq i8 %d, 9
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ret i1 %r
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}
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define i1 @udiv_exact_ne_30_no_of(i8 %x, i8 %y) {
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; CHECK-LABEL: @udiv_exact_ne_30_no_of(
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; CHECK-NEXT: [[YY:%.*]] = and i8 [[Y:%.*]], 7
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; CHECK-NEXT: [[TMP1:%.*]] = mul nuw i8 [[YY]], 30
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; CHECK-NEXT: [[R:%.*]] = icmp ne i8 [[TMP1]], [[X:%.*]]
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; CHECK-NEXT: ret i1 [[R]]
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;
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%yy = and i8 %y, 7
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%d = udiv exact i8 %x, %yy
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%r = icmp ne i8 %d, 30
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ret i1 %r
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}
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