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author | Jakub Staszak <jstaszak@apple.com> | 2011-08-03 22:34:43 +0000 |
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committer | Jakub Staszak <jstaszak@apple.com> | 2011-08-03 22:34:43 +0000 |
commit | 990f78d53bfe3cf2c82147bc34b457b01e651f25 (patch) | |
tree | 9f30e2b28859e7fb63e1aa7867a41ed5f2bc1a14 /test/CodeGen/Thumb2 | |
parent | 2626dba9c5515d2e534c117bb16ceb03dd4d0930 (diff) | |
download | external_llvm-990f78d53bfe3cf2c82147bc34b457b01e651f25.zip external_llvm-990f78d53bfe3cf2c82147bc34b457b01e651f25.tar.gz external_llvm-990f78d53bfe3cf2c82147bc34b457b01e651f25.tar.bz2 |
Use MachineBranchProbabilityInfo in If-Conversion instead of its own heuristics.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136826 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/Thumb2')
-rw-r--r-- | test/CodeGen/Thumb2/2010-06-21-TailMergeBug.ll | 18 | ||||
-rw-r--r-- | test/CodeGen/Thumb2/thumb2-ifcvt1.ll | 8 |
2 files changed, 13 insertions, 13 deletions
diff --git a/test/CodeGen/Thumb2/2010-06-21-TailMergeBug.ll b/test/CodeGen/Thumb2/2010-06-21-TailMergeBug.ll index f91e1c9..244d0bb 100644 --- a/test/CodeGen/Thumb2/2010-06-21-TailMergeBug.ll +++ b/test/CodeGen/Thumb2/2010-06-21-TailMergeBug.ll @@ -32,15 +32,15 @@ define fastcc i32 @parse_percent_token() nounwind { entry: -; CHECK: ittt eq -; CHECK: ittt eq -; CHECK: ittt eq -; CHECK: ittt eq -; CHECK: ittt eq -; CHECK: moveq r0 -; CHECK-NOT: LBB0_ -; CHECK: ldreq -; CHECK: popeq +; CHECK: pop +; CHECK: pop +; CHECK: pop +; CHECK: pop +; CHECK: pop +; CHECK: pop +; CHECK: pop +; Do not convert into single stream code. BranchProbability Analysis assumes +; that branches which goes to "ret" intruction have lower probabilities. switch i32 undef, label %bb7 [ i32 37, label %bb43 i32 48, label %bb5 diff --git a/test/CodeGen/Thumb2/thumb2-ifcvt1.ll b/test/CodeGen/Thumb2/thumb2-ifcvt1.ll index a4035bb..af8fcc6 100644 --- a/test/CodeGen/Thumb2/thumb2-ifcvt1.ll +++ b/test/CodeGen/Thumb2/thumb2-ifcvt1.ll @@ -21,13 +21,13 @@ cond_next: ret i32 %tmp15 } -; FIXME: Check for # of unconditional branch after adding branch folding post ifcvt. define i32 @t2(i32 %a, i32 %b) nounwind { entry: +; Do not if-convert when branches go to the different loops. ; CHECK: t2: -; CHECK: ite gt -; CHECK: subgt -; CHECK: suble +; CHECK-NOT: ite gt +; CHECK-NOT: subgt +; CHECK-NOT: suble %tmp1434 = icmp eq i32 %a, %b ; <i1> [#uses=1] br i1 %tmp1434, label %bb17, label %bb.outer |