summaryrefslogtreecommitdiff
path: root/test/CodeGen/Mips/selectiondag-optlevel.ll
blob: 9993611317457d985b0e44c74c42adcb457589a0 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
; RUN: llc -march=mips -fast-isel=false -O0 < %s 2>&1 | FileCheck %s -check-prefix=O0
; RUN: llc -march=mips -fast-isel=false -O2 < %s 2>&1 | FileCheck %s -check-prefix=O2

; At -O0, DAGCombine won't try to merge these consecutive loads but it will at
; -O2.

define void @foo() nounwind {
entry:
  %0 = alloca [2 x i8], align 32
  %1 = getelementptr inbounds [2 x i8], [2 x i8]* %0, i32 0, i32 0
  store i8 1, i8* %1
  %2 = getelementptr inbounds [2 x i8], [2 x i8]* %0, i32 0, i32 1
  store i8 1, i8* %2
  ret void
}

; O0: addiu $[[REG:[0-9]+]], $zero, 1
; O0-DAG: sb $[[REG]], 0($sp)
; O0-DAG: sb $[[REG]], 1($sp)

; O2: addiu $[[REG:[0-9]+]], $zero, 257
; O2: sh $[[REG]], 0($sp)