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author | Artyom Skrobov <Artyom.Skrobov@arm.com> | 2014-02-26 11:27:28 +0000 |
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committer | Artyom Skrobov <Artyom.Skrobov@arm.com> | 2014-02-26 11:27:28 +0000 |
commit | e7082383732df492d8fabd17c31300db08de7627 (patch) | |
tree | 449d776a03de2b2c617ed0252b2abf17e5681cc3 /test | |
parent | 3d0b46969073ca31a74b5a19c16163b6b24fb770 (diff) | |
download | llvm-e7082383732df492d8fabd17c31300db08de7627.tar.gz llvm-e7082383732df492d8fabd17c31300db08de7627.tar.bz2 llvm-e7082383732df492d8fabd17c31300db08de7627.tar.xz |
ARMv8 IfConversion must skip narrow instructions that a) define CPSR and b) wouldn't affect CPSR in an IT block
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202257 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
-rw-r--r-- | test/CodeGen/Thumb2/v8_IT_6.ll | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/test/CodeGen/Thumb2/v8_IT_6.ll b/test/CodeGen/Thumb2/v8_IT_6.ll new file mode 100644 index 0000000000..b12c4797d2 --- /dev/null +++ b/test/CodeGen/Thumb2/v8_IT_6.ll @@ -0,0 +1,100 @@ +; RUN: llc < %s -mtriple=thumbv8 -show-mc-encoding | FileCheck %s +; CHECK-NOT: orrsne r0, r1 @ encoding: [0x08,0x43] +; Narrow tORR cannot be predicated and set CPSR at the same time! + +declare void @f(i32) + +define void @initCloneLookups() #1 { +entry: + br label %for.cond1.preheader + +for.cond1.preheader: ; preds = %for.inc24, %entry + %cmp108 = phi i1 [ true, %entry ], [ %cmp, %for.inc24 ] + %y.0105 = phi i32 [ 1, %entry ], [ %inc25, %for.inc24 ] + %notlhs = icmp slt i32 %y.0105, 6 + %notlhs69 = icmp sgt i32 %y.0105, 4 + %sub = add nsw i32 %y.0105, -1 + %cmp1.i = icmp sgt i32 %sub, 5 + %cmp1.i54 = icmp sgt i32 %y.0105, 5 + br i1 %cmp108, label %if.then.us, label %for.cond1.preheader.for.cond1.preheader.split_crit_edge + +for.cond1.preheader.for.cond1.preheader.split_crit_edge: ; preds = %for.cond1.preheader + br i1 %notlhs, label %for.inc.us101, label %for.inc + +if.then.us: ; preds = %for.cond1.preheader, %for.inc.us + %x.071.us = phi i32 [ %inc.us.pre-phi, %for.inc.us ], [ 1, %for.cond1.preheader ] + %notrhs.us = icmp sge i32 %x.071.us, %y.0105 + %or.cond44.not.us = or i1 %notrhs.us, %notlhs + %notrhs70.us = icmp sle i32 %x.071.us, %y.0105 + %tobool.us = or i1 %notrhs70.us, %notlhs69 + %or.cond66.us = and i1 %or.cond44.not.us, %tobool.us + br i1 %or.cond66.us, label %getHexxagonIndex.exit52.us, label %if.then.us.for.inc.us_crit_edge + +if.then.us.for.inc.us_crit_edge: ; preds = %if.then.us + %inc.us.pre = add nsw i32 %x.071.us, 1 + br label %for.inc.us + +getHexxagonIndex.exit52.us: ; preds = %if.then.us + %cmp3.i.us = icmp slt i32 %x.071.us, 5 + %or.cond.i.us = and i1 %cmp1.i, %cmp3.i.us + %..i.us = sext i1 %or.cond.i.us to i32 + tail call void @f(i32 %..i.us) #3 + %add.us = add nsw i32 %x.071.us, 1 + %cmp3.i55.us = icmp slt i32 %add.us, 5 + %or.cond.i56.us = and i1 %cmp1.i54, %cmp3.i55.us + %..i57.us = sext i1 %or.cond.i56.us to i32 + tail call void @f(i32 %..i57.us) #3 + %or.cond.i48.us = and i1 %notlhs69, %cmp3.i55.us + %..i49.us = sext i1 %or.cond.i48.us to i32 + tail call void @f(i32 %..i49.us) #3 + br label %for.inc.us + +for.inc.us: ; preds = %if.then.us.for.inc.us_crit_edge, %getHexxagonIndex.exit52.us + %inc.us.pre-phi = phi i32 [ %inc.us.pre, %if.then.us.for.inc.us_crit_edge ], [ %add.us, %getHexxagonIndex.exit52.us ] + %exitcond109 = icmp eq i32 %inc.us.pre-phi, 10 + br i1 %exitcond109, label %for.inc24, label %if.then.us + +for.inc.us101: ; preds = %for.cond1.preheader.for.cond1.preheader.split_crit_edge, %for.inc.us101 + %x.071.us74 = phi i32 [ %add.us89, %for.inc.us101 ], [ 1, %for.cond1.preheader.for.cond1.preheader.split_crit_edge ] + %cmp3.i.us84 = icmp slt i32 %x.071.us74, 5 + %or.cond.i.us85 = and i1 %cmp1.i, %cmp3.i.us84 + %..i.us86 = sext i1 %or.cond.i.us85 to i32 + tail call void @f(i32 %..i.us86) #3 + %add.us89 = add nsw i32 %x.071.us74, 1 + %cmp3.i55.us93 = icmp slt i32 %add.us89, 5 + %or.cond.i56.us94 = and i1 %cmp1.i54, %cmp3.i55.us93 + %..i57.us95 = sext i1 %or.cond.i56.us94 to i32 + tail call void @f(i32 %..i57.us95) #3 + %or.cond.i48.us97 = and i1 %notlhs69, %cmp3.i55.us93 + %..i49.us98 = sext i1 %or.cond.i48.us97 to i32 + tail call void @f(i32 %..i49.us98) #3 + %exitcond110 = icmp eq i32 %add.us89, 10 + br i1 %exitcond110, label %for.inc24, label %for.inc.us101 + +for.inc: ; preds = %for.cond1.preheader.for.cond1.preheader.split_crit_edge, %for.inc + %x.071 = phi i32 [ %add, %for.inc ], [ 1, %for.cond1.preheader.for.cond1.preheader.split_crit_edge ] + %cmp3.i = icmp slt i32 %x.071, 5 + %or.cond.i = and i1 %cmp1.i, %cmp3.i + %..i = sext i1 %or.cond.i to i32 + tail call void @f(i32 %..i) #3 + %add = add nsw i32 %x.071, 1 + %cmp3.i55 = icmp slt i32 %add, 5 + %or.cond.i56 = and i1 %cmp1.i54, %cmp3.i55 + %..i57 = sext i1 %or.cond.i56 to i32 + tail call void @f(i32 %..i57) #3 + %or.cond.i48 = and i1 %notlhs69, %cmp3.i55 + %..i49 = sext i1 %or.cond.i48 to i32 + tail call void @f(i32 %..i49) #3 + %exitcond = icmp eq i32 %add, 10 + br i1 %exitcond, label %for.inc24, label %for.inc + +for.inc24: ; preds = %for.inc, %for.inc.us101, %for.inc.us + %inc25 = add nsw i32 %y.0105, 1 + %cmp = icmp slt i32 %inc25, 10 + %exitcond111 = icmp eq i32 %inc25, 10 + br i1 %exitcond111, label %for.end26, label %for.cond1.preheader + +for.end26: ; preds = %for.inc24 + ret void +} + |