derek.holloway
7502bf64a4
CodeQL / Analyze (actions) (push) Canceled after 0s
CodeQL / Analyze (python) (push) Canceled after 0s
pre-commit / pre-commit (push) Canceled after 0s
Multi-Arch CI / setup (push) Canceled after 0s
Publish build_manylinux_x86_64 images / publish_build_manylinux_x86_64 (push) Canceled after 0s
Setup (Multi-Arch) / setup (push) Canceled after 0s
Multi-Arch CI / Linux::${{ fromJSON(needs.setup.outputs.linux_build_config || '{}').build_variant_label || 'skip' }} (push) Canceled after 0s
Publish TheRock Docker image / build-and-push-image (push) Canceled after 0s
Publish no_rocm_image_ubi10 image / publish_no_rocm_image_ubi10 (push) Canceled after 0s
Multi-Arch CI / Windows::${{ fromJSON(needs.setup.outputs.windows_build_config || '{}').build_variant_label || 'skip' }} (push) Canceled after 0s
Publish TheRock Docker image / build-and-push-image (push) Canceled after 0s
Multi-Arch CI / Manifest Diff (push) Canceled after 0s
TheRock Manifest Diff Report / Generate Manifest Diff Report (push) Canceled after 0s
Multi-Arch CI / CI Summary (push) Canceled after 0s
Publish no_rocm_image_ubuntu24_04 images / publish_no_rocm_image_ubuntu24_04 (push) Canceled after 0s
Publish no_rocm_image_ubuntu24_04_ocl_rt images / publish_no_rocm_image_ubuntu24_04_ocl_rt (push) Canceled after 0s
Publish TheRock Docker image / build-and-push-image (push) Canceled after 0s
Publish TheRock Docker image / build-and-push-image (push) Canceled after 0s
Publish no_rocm_image_ubuntu24_04 images / publish_no_rocm_image_ubuntu24_04_rocgdb (push) Canceled after 0s
Publish no_rocm_image_ubuntu24_04_rocgdb images / publish_no_rocm_image_ubuntu24_04_rocgdb (push) Canceled after 0s
Publish no_rocm_image_ubuntu24_04 images / publish_no_rocm_image_ubuntu24_04_ocl_rt (push) Canceled after 0s
Publish TheRock Docker image / build-and-push-image (push) Canceled after 0s
Unit Tests / Unit Tests :: ubuntu-24.04 (push) Canceled after 0s
Unit Tests / Unit Tests :: windows-2022 (push) Canceled after 0s
Publish no_rocm_image_ubuntu24_04 images / publish_no_rocm_image_ubuntu24_04_media (push) Canceled after 0s
Unit Tests / Unit Tests Summary (push) Canceled after 0s
Publish no_rocm_image_ubuntu24_04 images / publish_no_rocm_image_ubuntu24_04_openmpi (push) Canceled after 0s
52 lines
1.4 KiB
LLVM
52 lines
1.4 KiB
LLVM
; RUN: opt < %s -loop-unroll -codegenprepare -S -mtriple=x86_64 | FileCheck %s
|
|
|
|
; This test is a worst-case scenario for bitreversal/byteswap detection.
|
|
; After loop unrolling (the unrolled loop is unreadably large so it has been kept
|
|
; rolled here), we have a binary tree of OR operands (as bitreversal detection
|
|
; looks straight through shifts):
|
|
;
|
|
; OR
|
|
; | \
|
|
; | LSHR
|
|
; | /
|
|
; OR
|
|
; | \
|
|
; | LSHR
|
|
; | /
|
|
; OR
|
|
;
|
|
; This results in exponential runtime. The loop here is 32 iterations which will
|
|
; totally hang if we don't deal with this case cleverly.
|
|
|
|
@b = common global i32 0, align 4
|
|
|
|
; CHECK: define i32 @fn1
|
|
define i32 @fn1() {
|
|
entry:
|
|
%b.promoted = load i32, ptr @b, align 4, !tbaa !2
|
|
br label %for.body
|
|
|
|
for.body: ; preds = %for.body, %entry
|
|
%or4 = phi i32 [ %b.promoted, %entry ], [ %or, %for.body ]
|
|
%i.03 = phi i32 [ 0, %entry ], [ %inc, %for.body ]
|
|
%shr = lshr i32 %or4, 1
|
|
%or = or i32 %shr, %or4
|
|
%inc = add nuw nsw i32 %i.03, 1
|
|
%exitcond = icmp eq i32 %inc, 32
|
|
br i1 %exitcond, label %for.end, label %for.body
|
|
|
|
for.end: ; preds = %for.body
|
|
store i32 %or, ptr @b, align 4, !tbaa !2
|
|
ret i32 undef
|
|
}
|
|
|
|
!llvm.module.flags = !{!0}
|
|
!llvm.ident = !{!1}
|
|
|
|
!0 = !{i32 1, !"PIC Level", i32 2}
|
|
!1 = !{!"clang version 3.8.0"}
|
|
!2 = !{!3, !3, i64 0}
|
|
!3 = !{!"int", !4, i64 0}
|
|
!4 = !{!"omnipotent char", !5, i64 0}
|
|
!5 = !{!"Simple C/C++ TBAA"}
|