Also shrink immediate branches; also more assembler workarounds.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79014 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 61 insertions, 0 deletions

diff --git a/test/CodeGen/Thumb2/thumb2-branch.ll b/test/CodeGen/Thumb2/thumb2-branch.ll
new file mode 100644
index 00000000000..1dcaac09fd8
--- /dev/null
+++ b/test/CodeGen/Thumb2/thumb2-branch.ll
@@ -0,0 +1,61 @@
+; 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
+}