File: loop_evaluate_6.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 (30 lines) | stat: -rw-r--r-- 817 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
22
23
24
25
26
27
28
29
30
 
; RUN: opt < %s -passes=indvars,loop-deletion -S | FileCheck %s

define i32 @test(i32 %x_offs) nounwind readnone {
; CHECK-LABEL: @test(
; CHECK: phi
; CHECK-NOT: phi

entry:
	%0 = icmp sgt i32 %x_offs, 4		; <i1> [#uses=1]
	br i1 %0, label %bb.nph, label %bb2

bb.nph:		; preds = %entry
	br label %bb

bb:		; preds = %bb1, %bb.nph
	%x_offs_addr.01 = phi i32 [ %1, %bb1 ], [ %x_offs, %bb.nph ]		; <i32> [#uses=1]
	%1 = add i32 %x_offs_addr.01, -4		; <i32> [#uses=3]
	br label %bb1

bb1:		; preds = %bb
	%2 = icmp sgt i32 %1, 4		; <i1> [#uses=1]
	br i1 %2, label %bb, label %bb1.bb2_crit_edge

bb1.bb2_crit_edge:		; preds = %bb1
	br label %bb2

bb2:		; preds = %bb1.bb2_crit_edge, %entry
	%x_offs_addr.0.lcssa = phi i32 [ %1, %bb1.bb2_crit_edge ], [ %x_offs, %entry ]		; <i32> [#uses=1]
	ret i32 %x_offs_addr.0.lcssa
}