File: trivial-join-at-loop-exit.ll

package info (click to toggle)
llvm-toolchain-14 1%3A14.0.6-12
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,496,180 kB
  • sloc: cpp: 5,593,972; ansic: 986,872; asm: 585,869; python: 184,223; objc: 72,530; lisp: 31,119; f90: 27,793; javascript: 9,780; pascal: 9,762; sh: 9,482; perl: 7,468; ml: 5,432; awk: 3,523; makefile: 2,538; xml: 953; cs: 573; fortran: 567
file content (25 lines) | stat: -rw-r--r-- 873 bytes parent folder | download | duplicates (4)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
; RUN: opt -mtriple amdgcn-unknown-amdhsa -passes='print<divergence>' -disable-output %s 2>&1 | FileCheck %s

; CHECK: bb2:
; CHECK-NOT: DIVERGENT:       %Guard.bb2 = phi i1 [ true, %bb1 ], [ false, %bb0 ]

; Function Attrs: nounwind readnone speculatable
declare i32 @llvm.amdgcn.workitem.id.x() #0

define protected amdgpu_kernel void @test2(i1 %uni) {
bb0:
  %tid.x = call i32 @llvm.amdgcn.workitem.id.x()
  %i5 = icmp eq i32 %tid.x, -1
  br i1 %uni, label %bb1, label %bb2

bb1:                                              ; preds = %bb2, %bb0
  %lsr.iv = phi i32 [ 7, %bb0 ], [ %lsr.iv.next, %bb1 ]
  %lsr.iv.next = add nsw i32 %lsr.iv, -1
  br i1 %i5, label %bb2, label %bb1

bb2:                                              ; preds = %bb2, %bb1
  %Guard.bb2 = phi i1 [ true, %bb1 ], [ false, %bb0 ]
  ret void
}

attributes #0 = { nounwind readnone speculatable }