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TheRock/compiler/amd-llvm/llvm/test/Transforms/LoopDeletion/D108848-regression.ll
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derek.holloway 7502bf64a4
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

48 lines
1.4 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -passes=loop-deletion -S < %s | FileCheck %s
@a = global i1 false, align 4
define i32 @main() {
; CHECK-LABEL: @main(
; CHECK-NEXT: entry:
; CHECK-NEXT: br label [[FOR_BODY:%.*]]
; CHECK: for.body:
; CHECK-NEXT: [[D_015:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ]
; CHECK-NEXT: call void @foo()
; CHECK-NEXT: [[DOTB:%.*]] = load i1, ptr @a, align 4
; CHECK-NEXT: [[CONV1:%.*]] = select i1 [[DOTB]], i32 -128, i32 1
; CHECK-NEXT: [[CMP2_NOT:%.*]] = icmp ugt i32 [[CONV1]], [[D_015]]
; CHECK-NEXT: br i1 [[CMP2_NOT]], label [[CLEANUP:%.*]], label [[FOR_INC8:%.*]]
; CHECK: for.inc8:
; CHECK-NEXT: [[INC9:%.*]] = add nuw nsw i32 [[D_015]], 1
; CHECK-NEXT: [[EXITCOND_NOT:%.*]] = icmp eq i32 [[INC9]], 19
; CHECK-NEXT: br label [[CLEANUP]]
; CHECK: cleanup:
; CHECK-NEXT: store i1 true, ptr @a, align 4
; CHECK-NEXT: ret i32 0
;
entry:
br label %for.body
for.body:
%d.015 = phi i32 [ 0, %entry ], [ %inc9, %for.inc8 ]
call void @foo()
%.b = load i1, ptr @a, align 4
%conv1 = select i1 %.b, i32 -128, i32 1
%cmp2.not = icmp ugt i32 %conv1, %d.015
br i1 %cmp2.not, label %cleanup, label %for.inc8
for.inc8:
%inc9 = add nuw nsw i32 %d.015, 1
%exitcond.not = icmp eq i32 %inc9, 19
br i1 %exitcond.not, label %cleanup, label %for.body
cleanup:
store i1 true, ptr @a, align 4
ret i32 0
}
declare void @foo()