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571e434a34
This compiles Regression/CodeGen/X86/or-branch.ll into:
_foo:
subl $12, %esp
call L_bar$stub
movl 20(%esp), %eax
movl 16(%esp), %ecx
cmpl $5, %eax
jl LBB1_1 #cond_true
LBB1_3: #entry
testl %ecx, %ecx
jne LBB1_2 #UnifiedReturnBlock
LBB1_1: #cond_true
call L_bar$stub
addl $12, %esp
ret
LBB1_2: #UnifiedReturnBlock
addl $12, %esp
ret
instead of:
_foo:
subl $12, %esp
call L_bar$stub
movl 20(%esp), %eax
movl 16(%esp), %ecx
cmpl $4, %eax
setg %al
testl %ecx, %ecx
setne %cl
testb %cl, %al
jne LBB1_2 #UnifiedReturnBlock
LBB1_1: #cond_true
call L_bar$stub
addl $12, %esp
ret
LBB1_2: #UnifiedReturnBlock
addl $12, %esp
ret
And on ppc to:
cmpwi cr0, r29, 5
blt cr0, LBB1_1 ;cond_true
LBB1_3: ;entry
cmplwi cr0, r30, 0
bne cr0, LBB1_2 ;UnifiedReturnBlock
instead of:
cmpwi cr7, r4, 4
mfcr r2
addic r4, r3, -1
subfe r30, r4, r3
rlwinm r29, r2, 30, 31, 31
and r2, r29, r30
cmplwi cr0, r2, 0
bne cr0, LBB1_2 ;UnifiedReturnBlock
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31230 91177308-0d34-0410-b5e6-96231b3b80d8
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