bugfix: When the source register of CALL_NOLINK was LR, the following code was emitted:
mov lr, pc
bx lr
So, the function was not called.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35218 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/ARM/call_nolink.ll b/test/CodeGen/ARM/call_nolink.ll
new file mode 100644
index 0000000..fa1641d
--- /dev/null
+++ b/test/CodeGen/ARM/call_nolink.ll
@@ -0,0 +1,53 @@
+; RUN: llvm-as < %s | llc -march=arm &&
+; RUN: llvm-as < %s | llc -march=arm -mtriple=arm-linux-gnueabi | not grep "bx lr"
+
+ %struct.anon = type { i32 (i32, i32, i32)*, i32, i32, [3 x i32], i8*, i8*, i8* }
+@r = external global [14 x i32] ; <[14 x i32]*> [#uses=4]
+@isa = external global [13 x %struct.anon] ; <[13 x %struct.anon]*> [#uses=1]
+@pgm = external global [2 x { i32, [3 x i32] }] ; <[2 x { i32, [3 x i32] }]*> [#uses=4]
+@numi = external global i32 ; <i32*> [#uses=1]
+@counter = external global [2 x i32] ; <[2 x i32]*> [#uses=1]
+
+implementation ; Functions:
+
+define void @main_bb_2E_i_bb205_2E_i_2E_i_bb115_2E_i_2E_i() {
+newFuncRoot:
+ br label %bb115.i.i
+
+bb115.i.i.bb170.i.i_crit_edge.exitStub: ; preds = %bb115.i.i
+ ret void
+
+bb115.i.i.bb115.i.i_crit_edge: ; preds = %bb115.i.i
+ br label %bb115.i.i
+
+bb115.i.i: ; preds = %bb115.i.i.bb115.i.i_crit_edge, %newFuncRoot
+ %i_addr.3210.0.i.i = phi i32 [ %tmp166.i.i, %bb115.i.i.bb115.i.i_crit_edge ], [ 0, %newFuncRoot ] ; <i32> [#uses=7]
+ %tmp124.i.i = getelementptr [2 x { i32, [3 x i32] }]* @pgm, i32 0, i32 %i_addr.3210.0.i.i, i32 1, i32 0 ; <i32*> [#uses=1]
+ %tmp125.i.i = load i32* %tmp124.i.i ; <i32> [#uses=1]
+ %tmp126.i.i = getelementptr [14 x i32]* @r, i32 0, i32 %tmp125.i.i ; <i32*> [#uses=1]
+ %tmp127.i.i = load i32* %tmp126.i.i ; <i32> [#uses=1]
+ %tmp131.i.i = getelementptr [2 x { i32, [3 x i32] }]* @pgm, i32 0, i32 %i_addr.3210.0.i.i, i32 1, i32 1 ; <i32*> [#uses=1]
+ %tmp132.i.i = load i32* %tmp131.i.i ; <i32> [#uses=1]
+ %tmp133.i.i = getelementptr [14 x i32]* @r, i32 0, i32 %tmp132.i.i ; <i32*> [#uses=1]
+ %tmp134.i.i = load i32* %tmp133.i.i ; <i32> [#uses=1]
+ %tmp138.i.i = getelementptr [2 x { i32, [3 x i32] }]* @pgm, i32 0, i32 %i_addr.3210.0.i.i, i32 1, i32 2 ; <i32*> [#uses=1]
+ %tmp139.i.i = load i32* %tmp138.i.i ; <i32> [#uses=1]
+ %tmp140.i.i = getelementptr [14 x i32]* @r, i32 0, i32 %tmp139.i.i ; <i32*> [#uses=1]
+ %tmp141.i.i = load i32* %tmp140.i.i ; <i32> [#uses=1]
+ %tmp143.i.i = add i32 %i_addr.3210.0.i.i, 12 ; <i32> [#uses=1]
+ %tmp146.i.i = getelementptr [2 x { i32, [3 x i32] }]* @pgm, i32 0, i32 %i_addr.3210.0.i.i, i32 0 ; <i32*> [#uses=1]
+ %tmp147.i.i = load i32* %tmp146.i.i ; <i32> [#uses=1]
+ %tmp149.i.i = getelementptr [13 x %struct.anon]* @isa, i32 0, i32 %tmp147.i.i, i32 0 ; <i32 (i32, i32, i32)**> [#uses=1]
+ %tmp150.i.i = load i32 (i32, i32, i32)** %tmp149.i.i ; <i32 (i32, i32, i32)*> [#uses=1]
+ %tmp154.i.i = tail call i32 %tmp150.i.i( i32 %tmp127.i.i, i32 %tmp134.i.i, i32 %tmp141.i.i ) ; <i32> [#uses=1]
+ %tmp155.i.i = getelementptr [14 x i32]* @r, i32 0, i32 %tmp143.i.i ; <i32*> [#uses=1]
+ store i32 %tmp154.i.i, i32* %tmp155.i.i
+ %tmp159.i.i = getelementptr [2 x i32]* @counter, i32 0, i32 %i_addr.3210.0.i.i ; <i32*> [#uses=2]
+ %tmp160.i.i = load i32* %tmp159.i.i ; <i32> [#uses=1]
+ %tmp161.i.i = add i32 %tmp160.i.i, 1 ; <i32> [#uses=1]
+ store i32 %tmp161.i.i, i32* %tmp159.i.i
+ %tmp166.i.i = add i32 %i_addr.3210.0.i.i, 1 ; <i32> [#uses=2]
+ %tmp168.i.i = load i32* @numi ; <i32> [#uses=1]
+ icmp slt i32 %tmp166.i.i, %tmp168.i.i ; <i1>:0 [#uses=1]
+ br i1 %0, label %bb115.i.i.bb115.i.i_crit_edge, label %bb115.i.i.bb170.i.i_crit_edge.exitStub
+}