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Also shrink immediate branches; also more assembler workarounds.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79014 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng
2009-08-14 18:31:44 +00:00
parent 960a7c9ad1
commit 31b99dd760
4 changed files with 136 additions and 17 deletions
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61
test/CodeGen/Thumb2/thumb2-branch.ll Normal file
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; RUN: llvm-as < %s | llc -march=thumb -mattr=+thumb2 -disable-arm-if-conversion | FileCheck %s
define void @f1(i32 %a, i32 %b, i32* %v) {
entry:
; CHECK: f1:
; CHECK bne LBB
%tmp = icmp eq i32 %a, %b ; <i1> [#uses=1]
br i1 %tmp, label %cond_true, label %return
cond_true: ; preds = %entry
store i32 0, i32* %v
ret void
return: ; preds = %entry
ret void
}
define void @f2(i32 %a, i32 %b, i32* %v) {
entry:
; CHECK: f2:
; CHECK bge LBB
%tmp = icmp slt i32 %a, %b ; <i1> [#uses=1]
br i1 %tmp, label %cond_true, label %return
cond_true: ; preds = %entry
store i32 0, i32* %v
ret void
return: ; preds = %entry
ret void
}
define void @f3(i32 %a, i32 %b, i32* %v) {
entry:
; CHECK: f3:
; CHECK bhs LBB
%tmp = icmp ult i32 %a, %b ; <i1> [#uses=1]
br i1 %tmp, label %cond_true, label %return
cond_true: ; preds = %entry
store i32 0, i32* %v
ret void
return: ; preds = %entry
ret void
}
define void @f4(i32 %a, i32 %b, i32* %v) {
entry:
; CHECK: f4:
; CHECK blo LBB
%tmp = icmp ult i32 %a, %b ; <i1> [#uses=1]
br i1 %tmp, label %return, label %cond_true
cond_true: ; preds = %entry
store i32 0, i32* %v
ret void
return: ; preds = %entry
ret void
}