File: pr21205.ll

package info (click to toggle)
llvm-toolchain-16 1%3A16.0.6-15~deb12u1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,634,792 kB
  • sloc: cpp: 6,179,261; ansic: 1,216,205; asm: 741,319; python: 196,614; objc: 75,325; f90: 49,640; lisp: 32,396; pascal: 12,286; sh: 9,394; perl: 7,442; ml: 5,494; awk: 3,523; makefile: 2,723; javascript: 1,206; xml: 886; fortran: 581; cs: 573
file content (21 lines) | stat: -rw-r--r-- 583 bytes parent folder | download | duplicates (12)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
; RUN: opt -passes=reassociate -S < %s | FileCheck %s
; PR21205

@a = common global i32 0, align 4
@b = common global i32 0, align 4

; Don't canonicalize %conv - undef into %conv + (-undef).
; CHECK-LABEL: @test1
; CHECK: %sub = fsub fast float %conv, undef
; CHECK: %sub1 = fadd fast float %sub, -1.000000e+00

define i32 @test1() {
entry:
  %0 = load i32, ptr @a, align 4
  %conv = sitofp i32 %0 to float
  %sub = fsub fast float %conv, undef
  %sub1 = fadd fast float %sub, -1.000000e+00
  %conv2 = fptosi float %sub1 to i32
  store i32 %conv2, ptr @b, align 4
  ret i32 undef
}