File: optnone.ll

package info (click to toggle)
llvm-toolchain-21 1%3A21.1.6-3
  • links: PTS, VCS
  • area: main
  • in suites: sid
  • size: 2,245,028 kB
  • sloc: cpp: 7,619,726; ansic: 1,434,018; asm: 1,058,748; python: 252,740; f90: 94,671; objc: 70,685; lisp: 42,813; pascal: 18,401; sh: 8,601; ml: 5,111; perl: 4,720; makefile: 3,675; awk: 3,523; javascript: 2,409; xml: 892; fortran: 770
file content (21 lines) | stat: -rw-r--r-- 683 bytes parent folder | download | duplicates (17)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
; RUN: opt < %s -passes=mem2reg -S | FileCheck %s

; This function is optnone, so the allocas should not be eliminated.

; CHECK-LABEL: @testfunc
; CHECK: alloca
; CHECK: alloca
define double @testfunc(i32 %i, double %j) optnone noinline {
	%I = alloca i32		; <ptr> [#uses=4]
	%J = alloca double		; <ptr> [#uses=2]
	store i32 %i, ptr %I
	store double %j, ptr %J
	%t1 = load i32, ptr %I		; <i32> [#uses=1]
	%t2 = add i32 %t1, 1		; <i32> [#uses=1]
	store i32 %t2, ptr %I
	%t3 = load i32, ptr %I		; <i32> [#uses=1]
	%t4 = sitofp i32 %t3 to double		; <double> [#uses=1]
	%t5 = load double, ptr %J		; <double> [#uses=1]
	%t6 = fmul double %t4, %t5		; <double> [#uses=1]
	ret double %t6
}