File: toolarge.ll

package info (click to toggle)
llvm-toolchain-14 1%3A14.0.6-12
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,496,180 kB
  • sloc: cpp: 5,593,972; ansic: 986,872; asm: 585,869; python: 184,223; objc: 72,530; lisp: 31,119; f90: 27,793; javascript: 9,780; pascal: 9,762; sh: 9,482; perl: 7,468; ml: 5,432; awk: 3,523; makefile: 2,538; xml: 953; cs: 573; fortran: 567
file content (16 lines) | stat: -rw-r--r-- 531 bytes parent folder | download | duplicates (16) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
 
; RUN: opt < %s -passes=float2int -float2int-max-integer-bw=256 -S | FileCheck %s

; CHECK-LABEL: @neg_toolarge
; CHECK:  %1 = uitofp i80 %a to fp128
; CHECK:  %2 = fadd fp128 %1, %1
; CHECK:  %3 = fptoui fp128 %2 to i80
; CHECK:  ret i80 %3
; fp128 has a 112-bit mantissa, which can hold an i80. But we only support
; up to i64, so it should fail (even though the max integer bitwidth is 256).
define i80 @neg_toolarge(i80 %a) {
  %1 = uitofp i80 %a to fp128
  %2 = fadd fp128 %1, %1
  %3 = fptoui fp128 %2 to i80
  ret i80 %3
}