File: dont-hoist-simple-loop-constants.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 (23 lines) | stat: -rw-r--r-- 988 bytes parent folder | download | duplicates (22) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
 
; RUN: opt < %s -loop-reduce -S | \
; RUN:   not grep "bitcast i32 1 to i32"
; END.
; The setlt wants to use a value that is incremented one more than the dominant
; IV.  Don't insert the 1 outside the loop, preventing folding it into the add.

define void @test([700 x i32]* %nbeaux_.0__558, i32* %i_.16574) {
then.0:
	br label %no_exit.2
no_exit.2:		; preds = %no_exit.2, %then.0
	%indvar630 = phi i32 [ 0, %then.0 ], [ %indvar.next631, %no_exit.2 ]		; <i32> [#uses=4]
	%gep.upgrd.1 = zext i32 %indvar630 to i64		; <i64> [#uses=1]
	%tmp.38 = getelementptr [700 x i32], [700 x i32]* %nbeaux_.0__558, i32 0, i64 %gep.upgrd.1		; <i32*> [#uses=1]
	store i32 0, i32* %tmp.38
	%inc.2 = add i32 %indvar630, 2		; <i32> [#uses=2]
	%tmp.34 = icmp slt i32 %inc.2, 701		; <i1> [#uses=1]
	%indvar.next631 = add i32 %indvar630, 1		; <i32> [#uses=1]
	br i1 %tmp.34, label %no_exit.2, label %loopexit.2.loopexit
loopexit.2.loopexit:		; preds = %no_exit.2
	store i32 %inc.2, i32* %i_.16574
	ret void
}