File: delete-node.ll

package info (click to toggle)
llvm 2.6-9.1
  • links: PTS
  • area: main
  • in suites: squeeze
  • size: 57,604 kB
  • ctags: 44,336
  • sloc: cpp: 344,766; sh: 12,407; ansic: 10,617; ada: 3,070; ml: 2,505; perl: 2,496; makefile: 1,426; pascal: 1,163; exp: 389; asm: 307; python: 298; objc: 260; lisp: 182; csh: 117; xml: 38; f90: 36; tcl: 20
file content (22 lines) | stat: -rw-r--r-- 943 bytes parent folder | download 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
 
; RUN: llvm-as < %s | llc -march=ppc32

; The DAGCombiner leaves behind a dead node in this testcase. Currently
; ISel is ignoring dead nodes, though it would be preferable for
; DAGCombiner to be able to eliminate the dead node.

define void @GrayATo32ARGBTabB(i8* %baseAddr, i16** %cmp, i32 %rowBytes) nounwind {
entry:
      	br label %bb1

bb1:            ; preds = %bb1, %entry
        %0 = load i16* null, align 2            ; <i16> [#uses=1]
        %1 = ashr i16 %0, 4             ; <i16> [#uses=1]
        %2 = sext i16 %1 to i32         ; <i32> [#uses=1]
        %3 = getelementptr i8* null, i32 %2             ; <i8*> [#uses=1]
        %4 = load i8* %3, align 1               ; <i8> [#uses=1]
        %5 = zext i8 %4 to i32          ; <i32> [#uses=1]
        %6 = shl i32 %5, 24             ; <i32> [#uses=1]
        %7 = or i32 0, %6               ; <i32> [#uses=1]
        store i32 %7, i32* null, align 4
        br label %bb1
}