diff test/CodeGen/Thumb2/thumb2-branch.ll @ 0:95c75e76d11b LLVM3.4

LLVM 3.4
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Thu, 12 Dec 2013 13:56:28 +0900
parents
children 54457678186b
line wrap: on
line diff
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/CodeGen/Thumb2/thumb2-branch.ll	Thu Dec 12 13:56:28 2013 +0900
@@ -0,0 +1,74 @@
+; 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 a call to make sure it doesn't
+; happen and we get actual branches.
+
+declare void @foo()
+
+define i32 @f1(i32 %a, i32 %b, i32* %v) {
+entry:
+; CHECK-LABEL: 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
+        call void @foo()
+        store i32 0, i32* %v
+        ret i32 0
+
+return:         ; preds = %entry
+        call void @foo()
+        ret i32 1
+}
+
+define i32 @f2(i32 %a, i32 %b, i32* %v) {
+entry:
+; CHECK-LABEL: 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
+        call void @foo()
+        store i32 0, i32* %v
+        ret i32 0
+
+return:         ; preds = %entry
+        call void @foo()
+        ret i32 1
+}
+
+define i32 @f3(i32 %a, i32 %b, i32* %v) {
+entry:
+; CHECK-LABEL: 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
+        call void @foo()
+        store i32 0, i32* %v
+        ret i32 0
+
+return:         ; preds = %entry
+        call void @foo()
+        ret i32 1
+}
+
+define i32 @f4(i32 %a, i32 %b, i32* %v) {
+entry:
+; CHECK-LABEL: f4:
+; CHECK: blo LBB
+        %tmp = icmp uge i32 %a, %b              ; <i1> [#uses=1]
+        br i1 %tmp, label %cond_true, label %return
+
+cond_true:              ; preds = %entry
+        call void @foo()
+        store i32 0, i32* %v
+        ret i32 0
+
+return:         ; preds = %entry
+        call void @foo()
+        ret i32 1
+}