File: bug-sdag-scheduler-cycle.ll

package info (click to toggle)
llvm-toolchain-20 1%3A20.1.6-1~exp1
  • links: PTS, VCS
  • area: main
  • in suites: experimental
  • size: 2,111,304 kB
  • sloc: cpp: 7,438,677; ansic: 1,393,822; asm: 1,012,926; python: 241,650; f90: 86,635; objc: 75,479; lisp: 42,144; pascal: 17,286; sh: 10,027; ml: 5,082; perl: 4,730; awk: 3,523; makefile: 3,349; javascript: 2,251; xml: 892; fortran: 672
file content (25 lines) | stat: -rw-r--r-- 891 bytes parent folder | download | duplicates (13) 
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: llc < %s -mtriple=amdgcn--amdpal -mcpu=gfx1010 -verify-machineinstrs | FileCheck %s --check-prefixes=CHECK

; This used to cause a circular chain dependency during
; SelectionDAG instruction scheduling.

; CHECK-LABEL: {{^}}_amdgpu_gs_main:
; CHECK: ds_read_b32
; CHECK: ds_read_b32
; CHECK: ds_read_b32
; CHECK: ds_read_b32
define amdgpu_gs float @_amdgpu_gs_main(ptr addrspace(3) %arg0, ptr addrspace(3) %arg1, ptr addrspace(3) %arg2) #0 {
  %tmp = load volatile ptr addrspace(3), ptr addrspace(3) %arg0, align 4

  %tmp3 = load volatile i32, ptr addrspace(3) %tmp, align 4

  %tmp4 = load volatile i32, ptr addrspace(3) %arg1, align 4

  %tmp7a = getelementptr i32, ptr addrspace(3) %tmp, i32 8
  %tmp8 = load volatile i32, ptr addrspace(3) %tmp7a, align 4

  %tmp9 = add i32 %tmp3, %tmp8
  %tmp10 = add i32 %tmp9, %tmp4
  %tmp14 = bitcast i32 %tmp10 to float
  ret float %tmp14
}