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

package info (click to toggle)
llvm-toolchain-9 1%3A9.0.1-16.1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 882,388 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 (12 lines) | stat: -rw-r--r-- 445 bytes parent folder | download | duplicates (28)
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
}