diff options
Diffstat (limited to 'llvm/test/CodeGen/Thumb2/thumb2-ifcvt1.ll')
| -rw-r--r-- | llvm/test/CodeGen/Thumb2/thumb2-ifcvt1.ll | 47 |
1 files changed, 43 insertions, 4 deletions
diff --git a/llvm/test/CodeGen/Thumb2/thumb2-ifcvt1.ll b/llvm/test/CodeGen/Thumb2/thumb2-ifcvt1.ll index eb48ffb7d80..a78b0c13426 100644 --- a/llvm/test/CodeGen/Thumb2/thumb2-ifcvt1.ll +++ b/llvm/test/CodeGen/Thumb2/thumb2-ifcvt1.ll @@ -1,6 +1,7 @@ ; RUN: llc < %s -mtriple=thumbv7-apple-darwin | FileCheck %s ; RUN: llc < %s -mtriple=thumbv7-apple-darwin -arm-default-it | FileCheck %s -; RUN: llc < %s -mtriple=thumbv8 -arm-no-restrict-it |FileCheck %s +; RUN: llc < %s -mtriple=thumbv8 -arm-no-restrict-it | FileCheck %s +; RUN: llc < %s -mtriple=thumbv8 -arm-no-restrict-it -enable-tail-merge=0 | FileCheck %s define i32 @t1(i32 %a, i32 %b, i32 %c, i32 %d) nounwind { ; CHECK-LABEL: t1: ; CHECK: ittt ne @@ -25,9 +26,9 @@ cond_next: define i32 @t2(i32 %a, i32 %b) nounwind { entry: ; CHECK-LABEL: t2: -; CHECK: ite gt -; CHECK: subgt -; CHECK: suble +; CHECK: ite {{gt|le}} +; CHECK-DAG: suble +; CHECK-DAG: subgt %tmp1434 = icmp eq i32 %a, %b ; <i1> [#uses=1] br i1 %tmp1434, label %bb17, label %bb.outer @@ -60,6 +61,44 @@ bb17: ; preds = %cond_false, %cond_true, %entry ret i32 %a_addr.026.1 } +define i32 @t2_nomerge(i32 %a, i32 %b) nounwind { +entry: +; CHECK-LABEL: t2_nomerge: +; CHECK-NOT: ite {{gt|le}} +; CHECK-NOT: suble +; CHECK-NOT: subgt + %tmp1434 = icmp eq i32 %a, %b ; <i1> [#uses=1] + br i1 %tmp1434, label %bb17, label %bb.outer + +bb.outer: ; preds = %cond_false, %entry + %b_addr.021.0.ph = phi i32 [ %b, %entry ], [ %tmp10, %cond_false ] ; <i32> [#uses=5] + %a_addr.026.0.ph = phi i32 [ %a, %entry ], [ %a_addr.026.0, %cond_false ] ; <i32> [#uses=1] + br label %bb + +bb: ; preds = %cond_true, %bb.outer + %indvar = phi i32 [ 0, %bb.outer ], [ %indvar.next, %cond_true ] ; <i32> [#uses=2] + %tmp. = sub i32 0, %b_addr.021.0.ph ; <i32> [#uses=1] + %tmp.40 = mul i32 %indvar, %tmp. ; <i32> [#uses=1] + %a_addr.026.0 = add i32 %tmp.40, %a_addr.026.0.ph ; <i32> [#uses=6] + %tmp3 = icmp sgt i32 %a_addr.026.0, %b_addr.021.0.ph ; <i1> [#uses=1] + br i1 %tmp3, label %cond_true, label %cond_false + +cond_true: ; preds = %bb + %tmp7 = sub i32 %a_addr.026.0, %b_addr.021.0.ph ; <i32> [#uses=2] + %tmp1437 = icmp eq i32 %tmp7, %b_addr.021.0.ph ; <i1> [#uses=1] + %indvar.next = add i32 %indvar, 1 ; <i32> [#uses=1] + br i1 %tmp1437, label %bb17, label %bb + +cond_false: ; preds = %bb + %tmp10 = sub i32 %b_addr.021.0.ph, %a_addr.026.0 ; <i32> [#uses=2] + %tmp14 = icmp eq i32 %b_addr.021.0.ph, %tmp10 ; <i1> [#uses=1] + br i1 %tmp14, label %bb17, label %bb.outer + +bb17: ; preds = %cond_false, %cond_true, %entry + %a_addr.026.1 = phi i32 [ %a, %entry ], [ %tmp7, %cond_true ], [ %a_addr.026.0, %cond_false ] ; <i32> [#uses=1] + ret i32 %a_addr.026.1 +} + @x = external global i32* ; <i32**> [#uses=1] define void @foo(i32 %a) nounwind { |
