File: 2006-12-05-fp-to-int-ext.ll

package info (click to toggle)
llvm-toolchain-3.4 1%3A3.4.2-13
  • links: PTS, VCS
  • area: main
  • in suites: jessie, jessie-kfreebsd
  • size: 253,236 kB
  • ctags: 276,203
  • sloc: cpp: 1,665,580; ansic: 298,647; asm: 206,157; objc: 84,350; python: 73,119; sh: 23,466; perl: 5,679; makefile: 5,542; ml: 5,250; pascal: 2,467; lisp: 1,420; xml: 679; cs: 236; csh: 117
file content (12 lines) | stat: -rw-r--r-- 445 bytes parent folder | download | duplicates (27)
1
2
3
4
5
6
7
8
9
10
11
12
; RUN: opt < %s -instcombine -S | grep zext

; Never merge these two conversions, even though it's possible: this is
; significantly more expensive than the two conversions on some targets
; and it causes libgcc to be compile __fixunsdfdi into a recursive 
; function.
define i64 @test(double %D) {
        %A = fptoui double %D to i32            ; <i32> [#uses=1]
        %B = zext i32 %A to i64         ; <i64> [#uses=1]
        ret i64 %B
}