File: zext-fold.ll

package info (click to toggle)
llvm-toolchain-3.8 1%3A3.8.1-24
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 379,280 kB
  • ctags: 388,501
  • sloc: cpp: 2,309,705; ansic: 477,070; objc: 100,918; asm: 97,974; python: 95,911; sh: 18,634; makefile: 7,294; perl: 5,584; ml: 5,460; pascal: 4,661; lisp: 2,548; xml: 686; cs: 350; php: 212; csh: 117
file content (12 lines) | stat: -rw-r--r-- 406 bytes parent folder | download | duplicates (7)
1
2
3
4
5
6
7
8
9
10
11
12
; RUN: opt < %s -instcombine -S | grep "zext " | count 1
; PR1570

define i32 @test2(float %X, float %Y) {
entry:
        %tmp3 = fcmp uno float %X, %Y           ; <i1> [#uses=1]
        %tmp34 = zext i1 %tmp3 to i8            ; <i8> [#uses=1]
        %tmp = xor i8 %tmp34, 1         ; <i8> [#uses=1]
        %toBoolnot5 = zext i8 %tmp to i32               ; <i32> [#uses=1]
        ret i32 %toBoolnot5
}