File: propagate-ir-flags.ll

package info (click to toggle)
llvm-toolchain-15 1%3A15.0.6-4
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,554,644 kB
  • sloc: cpp: 5,922,452; ansic: 1,012,136; asm: 674,362; python: 191,568; objc: 73,855; f90: 42,327; lisp: 31,913; pascal: 11,973; javascript: 10,144; sh: 9,421; perl: 7,447; ml: 5,527; awk: 3,523; makefile: 2,520; xml: 885; cs: 573; fortran: 567
file content (28 lines) | stat: -rw-r--r-- 764 bytes parent folder | download | duplicates (4) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
 
; RUN: opt < %s -passes=newgvn -S | FileCheck %s

; CHECK-LABEL: func_fast
; CHECK:       fadd fast double
; CHECK-NEXT:  store
; CHECK-NEXT:  ret
define double @func_fast(double %a, double %b) {
entry:
  %a.addr = alloca double, align 8
  %add = fadd fast double %b, 3.000000e+00
  store double %add, double* %a.addr, align 8
  %load_add = load double, double* %a.addr, align 8
  ret double %load_add
}

; CHECK-LABEL: func_no_fast
; CHECK:       fadd double
; CHECK-NEXT:  store
; CHECK-NEXT:  ret
define double @func_no_fast(double %a, double %b) {
entry:
  %a.addr = alloca double, align 8
  %add = fadd fast double %b, 3.000000e+00
  store double %add, double* %a.addr, align 8
  %duplicated_add = fadd double %b, 3.000000e+00
  ret double %duplicated_add
}