Try again to revert the bad patch. The tree was reverted for some unknown reason

[oota-llvm.git] / test / CodeGen / Thumb2 / thumb2-branch.ll

diff --git a/test/CodeGen/Thumb2/thumb2-branch.ll b/test/CodeGen/Thumb2/thumb2-branch.ll
index 1d2af7a547456fd6674be5fa7a1c6b367e5c59b4..f1c097c1892d2824852e4e9e5ee858f0f11e178b 100644 (file)
--- a/test/CodeGen/Thumb2/thumb2-branch.ll
+++ b/test/CodeGen/Thumb2/thumb2-branch.ll
@@ -1,4 +1,7 @@
 ; RUN: llc < %s -mtriple=thumbv7-apple-darwin -mattr=+thumb2 | FileCheck %s
+; If-conversion defeats the purpose of this test, which is to check conditional
+; branch generation, so use memory barrier instruction to make sure it doesn't
+; happen and we get actual branches.
 
 define i32 @f1(i32 %a, i32 %b, i32* %v) {
 entry:
@@ -8,10 +11,12 @@ entry:
         br i1 %tmp, label %cond_true, label %return
 
 cond_true:              ; preds = %entry
+        fence seq_cst
         store i32 0, i32* %v
         ret i32 0
 
 return:         ; preds = %entry
+        fence seq_cst
         ret i32 1
 }
 
@@ -23,10 +28,12 @@ entry:
         br i1 %tmp, label %cond_true, label %return
 
 cond_true:              ; preds = %entry
+        fence seq_cst
         store i32 0, i32* %v
         ret i32 0
 
 return:         ; preds = %entry
+        fence seq_cst
         ret i32 1
 }
 
@@ -38,10 +45,12 @@ entry:
         br i1 %tmp, label %cond_true, label %return
 
 cond_true:              ; preds = %entry
+        fence seq_cst
         store i32 0, i32* %v
         ret i32 0
 
 return:         ; preds = %entry
+        fence seq_cst
         ret i32 1
 }
 
@@ -49,13 +58,15 @@ define i32 @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
+        %tmp = icmp uge i32 %a, %b              ; <i1> [#uses=1]
+        br i1 %tmp, label %cond_true, label %return
 
 cond_true:              ; preds = %entry
+        fence seq_cst
         store i32 0, i32* %v
         ret i32 0
 
 return:         ; preds = %entry
+        fence seq_cst
         ret i32 1
 }