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 129838457b261d4893f60b8704b5272c51e88d87..f1c097c1892d2824852e4e9e5ee858f0f11e178b 100644 (file)
--- a/test/CodeGen/Thumb2/thumb2-branch.ll
+++ b/test/CodeGen/Thumb2/thumb2-branch.ll
@@ -1,6 +1,9 @@
 ; 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 void @f1(i32 %a, i32 %b, i32* %v) {
+define i32 @f1(i32 %a, i32 %b, i32* %v) {
 entry:
 ; CHECK: f1:
 ; CHECK: bne LBB
@@ -8,14 +11,16 @@ entry:
         br i1 %tmp, label %cond_true, label %return
 
 cond_true:              ; preds = %entry
+        fence seq_cst
         store i32 0, i32* %v
-        ret void
+        ret i32 0
 
 return:         ; preds = %entry
-        ret void
+        fence seq_cst
+        ret i32 1
 }
 
-define void @f2(i32 %a, i32 %b, i32* %v) {
+define i32 @f2(i32 %a, i32 %b, i32* %v) {
 entry:
 ; CHECK: f2:
 ; CHECK: bge LBB
@@ -23,14 +28,16 @@ entry:
         br i1 %tmp, label %cond_true, label %return
 
 cond_true:              ; preds = %entry
+        fence seq_cst
         store i32 0, i32* %v
-        ret void
+        ret i32 0
 
 return:         ; preds = %entry
-        ret void
+        fence seq_cst
+        ret i32 1
 }
 
-define void @f3(i32 %a, i32 %b, i32* %v) {
+define i32 @f3(i32 %a, i32 %b, i32* %v) {
 entry:
 ; CHECK: f3:
 ; CHECK: bhs LBB
@@ -38,24 +45,28 @@ entry:
         br i1 %tmp, label %cond_true, label %return
 
 cond_true:              ; preds = %entry
+        fence seq_cst
         store i32 0, i32* %v
-        ret void
+        ret i32 0
 
 return:         ; preds = %entry
-        ret void
+        fence seq_cst
+        ret i32 1
 }
 
-define void @f4(i32 %a, i32 %b, i32* %v) {
+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 void
+        ret i32 0
 
 return:         ; preds = %entry
-        ret void
+        fence seq_cst
+        ret i32 1
 }