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- Divides the comparisons in two types: comparisons that only use N and Z

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flags (ARMISD::CMPNZ) and comparisons that use all flags (ARMISD::CMP).
- Defines the instructions: TST, TEQ (ARM) and TST (Thumb).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35573 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Lauro Ramos Venancio
2007-04-02 01:30:03 +00:00
parent 086f186267
commit 9996663fc6
5 changed files with 66 additions and 7 deletions
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21
test/CodeGen/ARM/tst_teq.ll Normal file
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@@ -0,0 +1,21 @@
; RUN: llvm-as < %s | llc -march=arm &&
; RUN: llvm-as < %s | llc -march=thumb &&
; RUN: llvm-as < %s | llc -march=arm | grep "tst" &&
; RUN: llvm-as < %s | llc -march=arm | grep "teq" &&
; RUN: llvm-as < %s | llc -march=thumb | grep "tst"
define i32 @f(i32 %a) {
entry:
%tmp2 = and i32 %a, 255 ; <i32> [#uses=1]
icmp eq i32 %tmp2, 0 ; <i1>:0 [#uses=1]
%retval = select i1 %0, i32 20, i32 10 ; <i32> [#uses=1]
ret i32 %retval
}
define i32 @g(i32 %a) {
entry:
%tmp2 = xor i32 %a, 255
icmp eq i32 %tmp2, 0 ; <i1>:0 [#uses=1]
%retval = select i1 %0, i32 20, i32 10 ; <i32> [#uses=1]
ret i32 %retval
}