diff options
Diffstat (limited to 'test')
| -rw-r--r-- | test/CodeGen/ARM/commute-movcc.ll | 63 | ||||
| -rw-r--r-- | test/CodeGen/ARM/machine-cse-cmp.ll | 2 | ||||
| -rw-r--r-- | test/CodeGen/ARM/select-imm.ll | 2 |
3 files changed, 65 insertions, 2 deletions
diff --git a/test/CodeGen/ARM/commute-movcc.ll b/test/CodeGen/ARM/commute-movcc.ll new file mode 100644 index 0000000..f53ac17 --- /dev/null +++ b/test/CodeGen/ARM/commute-movcc.ll @@ -0,0 +1,63 @@ +; RUN: llc -mtriple=thumbv7-apple-ios -disable-code-place < %s | FileCheck %s +; RUN: llc -mtriple=armv7-apple-ios -disable-code-place < %s | FileCheck %s + +; LLVM IR optimizers canonicalize icmp+select this way. +; Make sure that TwoAddressInstructionPass can commute the corresponding +; MOVCC instructions to avoid excessive copies in one of the if blocks. +; +; CHECK: %if.then +; CHECK-NOT: mov +; CHECK: movlo +; CHECK: movlo +; CHECK-NOT: mov + +; CHECK: %if.else +; CHECK-NOT: mov +; CHECK: movls +; CHECK: movls +; CHECK-NOT: mov + +; CHECK: %if.end8 + +define i32 @f(i32* nocapture %a, i32 %Pref) nounwind ssp { +entry: + br label %for.body + +for.body: ; preds = %entry, %if.end8 + %i.012 = phi i32 [ 0, %entry ], [ %inc, %if.end8 ] + %BestCost.011 = phi i32 [ -1, %entry ], [ %BestCost.1, %if.end8 ] + %BestIdx.010 = phi i32 [ 0, %entry ], [ %BestIdx.1, %if.end8 ] + %arrayidx = getelementptr inbounds i32* %a, i32 %i.012 + %0 = load i32* %arrayidx, align 4, !tbaa !0 + %mul = mul i32 %0, %0 + %sub = add nsw i32 %i.012, -5 + %cmp2 = icmp eq i32 %sub, %Pref + br i1 %cmp2, label %if.else, label %if.then + +if.then: ; preds = %for.body + %cmp3 = icmp ult i32 %mul, %BestCost.011 + %i.0.BestIdx.0 = select i1 %cmp3, i32 %i.012, i32 %BestIdx.010 + %mul.BestCost.0 = select i1 %cmp3, i32 %mul, i32 %BestCost.011 + br label %if.end8 + +if.else: ; preds = %for.body + %cmp5 = icmp ugt i32 %mul, %BestCost.011 + %BestIdx.0.i.0 = select i1 %cmp5, i32 %BestIdx.010, i32 %i.012 + %BestCost.0.mul = select i1 %cmp5, i32 %BestCost.011, i32 %mul + br label %if.end8 + +if.end8: ; preds = %if.else, %if.then + %BestIdx.1 = phi i32 [ %i.0.BestIdx.0, %if.then ], [ %BestIdx.0.i.0, %if.else ] + %BestCost.1 = phi i32 [ %mul.BestCost.0, %if.then ], [ %BestCost.0.mul, %if.else ] + store i32 %mul, i32* %arrayidx, align 4, !tbaa !0 + %inc = add i32 %i.012, 1 + %cmp = icmp eq i32 %inc, 11 + br i1 %cmp, label %for.end, label %for.body + +for.end: ; preds = %if.end8 + ret i32 %BestIdx.1 +} + +!0 = metadata !{metadata !"int", metadata !1} +!1 = metadata !{metadata !"omnipotent char", metadata !2} +!2 = metadata !{metadata !"Simple C/C++ TBAA", null} diff --git a/test/CodeGen/ARM/machine-cse-cmp.ll b/test/CodeGen/ARM/machine-cse-cmp.ll index f566974..3ac7d77 100644 --- a/test/CodeGen/ARM/machine-cse-cmp.ll +++ b/test/CodeGen/ARM/machine-cse-cmp.ll @@ -10,7 +10,7 @@ entry: ; CHECK: cmp ; CHECK: moveq ; CHECK-NOT: cmp -; CHECK: moveq +; CHECK: mov{{eq|ne}} %tmp1 = icmp eq i32 %cond1, 0 %tmp2 = select i1 %tmp1, i32 %x1, i32 %x2 %tmp3 = select i1 %tmp1, i32 %x2, i32 %x3 diff --git a/test/CodeGen/ARM/select-imm.ll b/test/CodeGen/ARM/select-imm.ll index e927b39..c9ac66a 100644 --- a/test/CodeGen/ARM/select-imm.ll +++ b/test/CodeGen/ARM/select-imm.ll @@ -64,7 +64,7 @@ define i32 @t4(i32 %a, i32 %b, i32 %x) nounwind { entry: ; ARM: t4: ; ARM: ldr -; ARM: movlt +; ARM: mov{{lt|ge}} ; ARMT2: t4: ; ARMT2: movwlt [[R0:r[0-9]+]], #65365 |