File: visit-physreg-vgpr-imm-folding-bug.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 (22 lines) | stat: -rw-r--r-- 774 bytes parent folder | download | duplicates (10) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
 
; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 < %s | FileCheck %s

; Make sure the return value of the first call is not overwritten with
; a constant before the fadd use.

; CHECK-LABEL: vgpr_multi_use_imm_fold:
; CHECK: v_mov_b32_e32 v0, 0{{$}}
; CHECK: v_mov_b32_e32 v1, 2.0{{$}}
; CHECK:    s_swappc_b64
; CHECK-NEXT: v_add_f64 v[0:1], v[0:1], 0
; CHECK:    s_swappc_b64
define amdgpu_kernel void @vgpr_multi_use_imm_fold() {
entry:
  store double 0.0, ptr addrspace(1) undef, align 8
  %call0 = tail call fastcc double @__ocml_log_f64(double 2.0)
  %op = fadd double %call0, 0.0
  %call1 = tail call fastcc double @__ocml_sqrt_f64(double %op)
  ret void
}

declare hidden fastcc double @__ocml_log_f64(double)
declare hidden fastcc double @__ocml_sqrt_f64(double)