File: load-select.ll

package info (click to toggle)
llvm-toolchain-3.9 1%3A3.9.1-8
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 441,060 kB
  • ctags: 428,777
  • sloc: cpp: 2,546,577; ansic: 538,318; asm: 119,677; objc: 103,316; python: 102,148; sh: 27,847; pascal: 5,626; ml: 5,510; perl: 5,293; lisp: 4,801; makefile: 2,177; xml: 686; cs: 362; php: 212; csh: 117
file content (16 lines) | stat: -rw-r--r-- 707 bytes parent folder | download | duplicates (20)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
; RUN: opt < %s -instcombine -S | FileCheck %s

target datalayout = "e-p:32:32:32-i1:8:32-i8:8:32-i16:16:32-i32:32:32-i64:32:32-f32:32:32-f64:32:32-v64:64:64-v128:128:128-a0:0:32-n32"

@a = constant [2 x i32] [i32 3, i32 6]            ; <[2 x i32]*> [#uses=2]

define i32 @b(i32 %y) nounwind readonly {
; CHECK-LABEL: @b(
; CHECK-NOT: load
; CHECK: ret i32
entry:
  %0 = icmp eq i32 %y, 0                          ; <i1> [#uses=1]
  %storemerge = select i1 %0, i32* getelementptr inbounds ([2 x i32], [2 x i32]* @a, i32 0, i32 1), i32* getelementptr inbounds ([2 x i32], [2 x i32]* @a, i32 0, i32 0) ; <i32*> [#uses=1]
  %1 = load i32, i32* %storemerge, align 4             ; <i32> [#uses=1]
  ret i32 %1
}