119 lines
3.5 KiB
LLVM
119 lines
3.5 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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define i8 @shl_add_nuw(i8 %amt_in, i8 %cnt_in) {
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; CHECK-LABEL: @shl_add_nuw(
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; CHECK-NEXT: [[AMT:%.*]] = and i8 [[AMT_IN:%.*]], 63
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; CHECK-NEXT: [[CNT:%.*]] = and i8 [[CNT_IN:%.*]], 2
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; CHECK-NEXT: [[R:%.*]] = shl nuw i8 [[AMT]], [[CNT]]
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; CHECK-NEXT: ret i8 [[R]]
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;
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%amt = and i8 %amt_in, 63
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%cnt = and i8 %cnt_in, 2
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%r = shl i8 %amt, %cnt
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ret i8 %r
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}
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define i8 @shl_add_nuw_fail(i8 %amt_in, i8 %cnt_in) {
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; CHECK-LABEL: @shl_add_nuw_fail(
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; CHECK-NEXT: [[AMT:%.*]] = and i8 [[AMT_IN:%.*]], 63
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; CHECK-NEXT: [[CNT:%.*]] = and i8 [[CNT_IN:%.*]], 3
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; CHECK-NEXT: [[R:%.*]] = shl i8 [[AMT]], [[CNT]]
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; CHECK-NEXT: ret i8 [[R]]
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;
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%amt = and i8 %amt_in, 63
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%cnt = and i8 %cnt_in, 3
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%r = shl i8 %amt, %cnt
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ret i8 %r
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}
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define i8 @shl_add_nuw_and_nsw(i8 %amt_in, i8 %cnt_in) {
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; CHECK-LABEL: @shl_add_nuw_and_nsw(
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; CHECK-NEXT: [[AMT:%.*]] = and i8 [[AMT_IN:%.*]], 31
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; CHECK-NEXT: [[CNT:%.*]] = and i8 [[CNT_IN:%.*]], 2
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; CHECK-NEXT: [[R:%.*]] = shl nuw nsw i8 [[AMT]], [[CNT]]
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; CHECK-NEXT: ret i8 [[R]]
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;
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%amt = and i8 %amt_in, 31
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%cnt = and i8 %cnt_in, 2
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%r = shl i8 %amt, %cnt
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ret i8 %r
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}
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define i8 @shl_add_nsw(i8 %amt_in, i8 %cnt_in) {
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; CHECK-LABEL: @shl_add_nsw(
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; CHECK-NEXT: [[AMT:%.*]] = or i8 [[AMT_IN:%.*]], -32
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; CHECK-NEXT: [[CNT:%.*]] = and i8 [[CNT_IN:%.*]], 2
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; CHECK-NEXT: [[R:%.*]] = shl nsw i8 [[AMT]], [[CNT]]
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; CHECK-NEXT: ret i8 [[R]]
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;
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%amt = or i8 %amt_in, 224
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%cnt = and i8 %cnt_in, 2
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%r = shl i8 %amt, %cnt
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ret i8 %r
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}
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define i8 @shl_add_nsw_fail(i8 %amt_in, i8 %cnt_in) {
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; CHECK-LABEL: @shl_add_nsw_fail(
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; CHECK-NEXT: [[AMT:%.*]] = or i8 [[AMT_IN:%.*]], -64
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; CHECK-NEXT: [[CNT:%.*]] = and i8 [[CNT_IN:%.*]], 2
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; CHECK-NEXT: [[R:%.*]] = shl i8 [[AMT]], [[CNT]]
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; CHECK-NEXT: ret i8 [[R]]
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;
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%amt = or i8 %amt_in, 192
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%cnt = and i8 %cnt_in, 2
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%r = shl i8 %amt, %cnt
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ret i8 %r
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}
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define i8 @lshr_add_exact(i8 %amt_in, i8 %cnt_in) {
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; CHECK-LABEL: @lshr_add_exact(
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; CHECK-NEXT: [[AMT:%.*]] = and i8 [[AMT_IN:%.*]], -4
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; CHECK-NEXT: [[CNT:%.*]] = and i8 [[CNT_IN:%.*]], 2
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; CHECK-NEXT: [[R:%.*]] = lshr exact i8 [[AMT]], [[CNT]]
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; CHECK-NEXT: ret i8 [[R]]
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;
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%amt = and i8 %amt_in, -4
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%cnt = and i8 %cnt_in, 2
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%r = lshr i8 %amt, %cnt
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ret i8 %r
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}
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define i8 @lshr_add_exact_fail(i8 %amt_in, i8 %cnt_in) {
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; CHECK-LABEL: @lshr_add_exact_fail(
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; CHECK-NEXT: [[AMT:%.*]] = and i8 [[AMT_IN:%.*]], -7
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; CHECK-NEXT: [[CNT:%.*]] = and i8 [[CNT_IN:%.*]], 2
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; CHECK-NEXT: [[R:%.*]] = lshr i8 [[AMT]], [[CNT]]
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; CHECK-NEXT: ret i8 [[R]]
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;
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%amt = and i8 %amt_in, -7
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%cnt = and i8 %cnt_in, 2
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%r = lshr i8 %amt, %cnt
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ret i8 %r
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}
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define i8 @ashr_add_exact(i8 %amt_in, i8 %cnt_in) {
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; CHECK-LABEL: @ashr_add_exact(
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; CHECK-NEXT: [[AMT:%.*]] = and i8 [[AMT_IN:%.*]], -14
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; CHECK-NEXT: [[CNT:%.*]] = and i8 [[CNT_IN:%.*]], 1
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; CHECK-NEXT: [[R:%.*]] = ashr exact i8 [[AMT]], [[CNT]]
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; CHECK-NEXT: ret i8 [[R]]
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;
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%amt = and i8 %amt_in, -14
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%cnt = and i8 %cnt_in, 1
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%r = ashr i8 %amt, %cnt
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ret i8 %r
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}
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define i8 @ashr_add_exact_fail(i8 %amt_in, i8 %cnt_in) {
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; CHECK-LABEL: @ashr_add_exact_fail(
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; CHECK-NEXT: [[AMT:%.*]] = and i8 [[AMT_IN:%.*]], -14
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; CHECK-NEXT: [[CNT:%.*]] = and i8 [[CNT_IN:%.*]], 2
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; CHECK-NEXT: [[R:%.*]] = ashr i8 [[AMT]], [[CNT]]
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; CHECK-NEXT: ret i8 [[R]]
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;
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%amt = and i8 %amt_in, -14
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%cnt = and i8 %cnt_in, 2
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%r = ashr i8 %amt, %cnt
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ret i8 %r
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}
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