derek.holloway
7502bf64a4
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136 lines
3.4 KiB
LLVM
136 lines
3.4 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -passes=licm -S | FileCheck %s
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declare void @maythrow()
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declare void @use(i16)
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define void @sdiv_not_ok(i16 %n, i16 %xx) {
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; CHECK-LABEL: @sdiv_not_ok(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[X:%.*]] = or i16 [[XX:%.*]], 1
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; CHECK-NEXT: br label [[LOOP:%.*]]
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; CHECK: loop:
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; CHECK-NEXT: call void @maythrow()
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; CHECK-NEXT: [[DIV:%.*]] = sdiv i16 [[N:%.*]], [[X]]
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; CHECK-NEXT: call void @use(i16 [[DIV]])
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; CHECK-NEXT: br label [[LOOP]]
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;
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entry:
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%x = or i16 %xx, 1
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br label %loop
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loop:
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call void @maythrow()
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%div = sdiv i16 %n, %x
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call void @use(i16 %div)
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br label %loop
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}
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define void @srem_not_ok2(i16 %nn, i16 %x) {
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; CHECK-LABEL: @srem_not_ok2(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[N:%.*]] = and i16 [[NN:%.*]], 1323
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; CHECK-NEXT: br label [[LOOP:%.*]]
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; CHECK: loop:
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; CHECK-NEXT: call void @maythrow()
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; CHECK-NEXT: [[DIV:%.*]] = srem i16 [[N]], [[X:%.*]]
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; CHECK-NEXT: call void @use(i16 [[DIV]])
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; CHECK-NEXT: br label [[LOOP]]
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;
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entry:
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%n = and i16 %nn, 1323
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br label %loop
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loop:
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call void @maythrow()
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%div = srem i16 %n, %x
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call void @use(i16 %div)
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br label %loop
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}
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define void @sdiv_ok(i16 %n, i16 %xx) {
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; CHECK-LABEL: @sdiv_ok(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[XO:%.*]] = or i16 [[XX:%.*]], 1
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; CHECK-NEXT: [[X:%.*]] = and i16 [[XO]], 123
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; CHECK-NEXT: br label [[LOOP:%.*]]
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; CHECK: loop:
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; CHECK-NEXT: call void @maythrow()
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; CHECK-NEXT: [[DIV:%.*]] = sdiv i16 [[N:%.*]], [[X]]
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; CHECK-NEXT: call void @use(i16 [[DIV]])
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; CHECK-NEXT: br label [[LOOP]]
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;
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entry:
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%xo = or i16 %xx, 1
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%x = and i16 %xo, 123
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br label %loop
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loop:
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call void @maythrow()
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%div = sdiv i16 %n, %x
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call void @use(i16 %div)
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br label %loop
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}
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define void @srem_ok2(i16 %nn, i16 %xx) {
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; CHECK-LABEL: @srem_ok2(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[N:%.*]] = and i16 [[NN:%.*]], 123
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; CHECK-NEXT: [[X:%.*]] = or i16 [[XX:%.*]], 1
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; CHECK-NEXT: br label [[LOOP:%.*]]
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; CHECK: loop:
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; CHECK-NEXT: call void @maythrow()
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; CHECK-NEXT: [[DIV:%.*]] = srem i16 [[N]], [[X]]
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; CHECK-NEXT: call void @use(i16 [[DIV]])
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; CHECK-NEXT: br label [[LOOP]]
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;
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entry:
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%n = and i16 %nn, 123
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%x = or i16 %xx, 1
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br label %loop
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loop:
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call void @maythrow()
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%div = srem i16 %n, %x
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call void @use(i16 %div)
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br label %loop
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}
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define void @udiv_not_ok(i16 %n, i16 %xx) {
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; CHECK-LABEL: @udiv_not_ok(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[X:%.*]] = xor i16 [[XX:%.*]], 1
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; CHECK-NEXT: br label [[LOOP:%.*]]
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; CHECK: loop:
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; CHECK-NEXT: call void @maythrow()
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; CHECK-NEXT: [[DIV:%.*]] = udiv i16 [[N:%.*]], [[X]]
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; CHECK-NEXT: call void @use(i16 [[DIV]])
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; CHECK-NEXT: br label [[LOOP]]
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;
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entry:
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%x = xor i16 %xx, 1
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br label %loop
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loop:
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call void @maythrow()
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%div = udiv i16 %n, %x
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call void @use(i16 %div)
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br label %loop
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}
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define void @udiv_ok(i16 %n, i16 %xx) {
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; CHECK-LABEL: @udiv_ok(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[X:%.*]] = or i16 [[XX:%.*]], 1
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; CHECK-NEXT: br label [[LOOP:%.*]]
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; CHECK: loop:
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; CHECK-NEXT: call void @maythrow()
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; CHECK-NEXT: [[DIV:%.*]] = udiv i16 [[N:%.*]], [[X]]
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; CHECK-NEXT: call void @use(i16 [[DIV]])
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; CHECK-NEXT: br label [[LOOP]]
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;
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entry:
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%x = or i16 %xx, 1
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br label %loop
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loop:
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call void @maythrow()
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%div = udiv i16 %n, %x
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call void @use(i16 %div)
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br label %loop
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}
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