File: legalizedag-bug-expand-setcc.ll

package info (click to toggle)
llvm-toolchain-9 1%3A9.0.1-16
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 882,436 kB
  • sloc: cpp: 4,167,636; ansic: 714,256; asm: 457,610; python: 155,927; objc: 65,094; sh: 42,856; lisp: 26,908; perl: 7,786; pascal: 7,722; makefile: 6,881; ml: 5,581; awk: 3,648; cs: 2,027; xml: 888; javascript: 381; ruby: 156
file content (26 lines) | stat: -rw-r--r-- 710 bytes parent folder | download | duplicates (15)
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
26
; RUN: llc < %s -march=r600 -mcpu=redwood | FileCheck %s

; This tests a bug where LegalizeDAG was not checking the target's
; BooleanContents value and always using one for true, when expanding
; setcc to select_cc.
;
; This bug caused the icmp IR instruction to be expanded to two machine
; instructions, when only one is needed.
;

; CHECK: {{^}}setcc_expand:
; CHECK: SET
; CHECK-NOT: CND
define amdgpu_kernel void @setcc_expand(i32 addrspace(1)* %out, i32 %in) {
entry:
  %0 = icmp eq i32 %in, 5
  br i1 %0, label %IF, label %ENDIF
IF:
  %1 = getelementptr i32, i32 addrspace(1)* %out, i32 1
  store i32 0, i32 addrspace(1)* %1
  br label %ENDIF

ENDIF:
  store i32 0, i32 addrspace(1)* %out
  ret void
}