Lower the MBlaze target specific calling conventions for "interrupt_handler"
and "save_volatiles" correctly. This completes the custom calling convention
functionality changes for the MBlaze backend that were started in 121888.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121891 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/MBlaze/svol.ll b/test/CodeGen/MBlaze/svol.ll
new file mode 100644
index 0000000..c1e9620
--- /dev/null
+++ b/test/CodeGen/MBlaze/svol.ll
@@ -0,0 +1,80 @@
+; Ensure that the MBlaze save_volatiles calling convention (cc74) is handled
+; correctly correctly by the MBlaze backend.
+;
+; RUN: llc < %s -march=mblaze | FileCheck %s
+
+@.str = private constant [28 x i8] c"The interrupt has gone off\0A\00"
+
+define cc74 void @mysvol() nounwind noinline {
+ ; CHECK: mysvol:
+ ; CHECK: swi r3, r1
+ ; CHECK: swi r4, r1
+ ; CHECK: swi r5, r1
+ ; CHECK: swi r6, r1
+ ; CHECK: swi r7, r1
+ ; CHECK: swi r8, r1
+ ; CHECK: swi r9, r1
+ ; CHECK: swi r10, r1
+ ; CHECK: swi r11, r1
+ ; CHECK: swi r12, r1
+ ; CHECK: swi r17, r1
+ ; CHECK: swi r18, r1
+ ; CHECK-NOT: mfs r11, rmsr
+ entry:
+ %call = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([28 x i8]* @.str, i32 0, i32 0))
+ ret void
+
+ ; CHECK-NOT: mts rmsr, r11
+ ; CHECK: lwi r18, r1
+ ; CHECK: lwi r17, r1
+ ; CHECK: lwi r12, r1
+ ; CHECK: lwi r11, r1
+ ; CHECK: lwi r10, r1
+ ; CHECK: lwi r9, r1
+ ; CHECK: lwi r8, r1
+ ; CHECK: lwi r7, r1
+ ; CHECK: lwi r6, r1
+ ; CHECK: lwi r5, r1
+ ; CHECK: lwi r4, r1
+ ; CHECK: lwi r3, r1
+ ; CHECK: rtsd r15, 8
+}
+
+define cc74 void @mysvol2() nounwind noinline {
+ ; CHECK: mysvol2:
+ ; CHECK-NOT: swi r3, r1
+ ; CHECK-NOT: swi r4, r1
+ ; CHECK-NOT: swi r5, r1
+ ; CHECK-NOT: swi r6, r1
+ ; CHECK-NOT: swi r7, r1
+ ; CHECK-NOT: swi r8, r1
+ ; CHECK-NOT: swi r9, r1
+ ; CHECK-NOT: swi r10, r1
+ ; CHECK-NOT: swi r11, r1
+ ; CHECK-NOT: swi r12, r1
+ ; CHECK: swi r17, r1
+ ; CHECK: swi r18, r1
+ ; CHECK-NOT: mfs r11, rmsr
+entry:
+
+ ; CHECK-NOT: mts rmsr, r11
+ ; CHECK: lwi r18, r1
+ ; CHECK: lwi r17, r1
+ ; CHECK-NOT: lwi r12, r1
+ ; CHECK-NOT: lwi r11, r1
+ ; CHECK-NOT: lwi r10, r1
+ ; CHECK-NOT: lwi r9, r1
+ ; CHECK-NOT: lwi r8, r1
+ ; CHECK-NOT: lwi r7, r1
+ ; CHECK-NOT: lwi r6, r1
+ ; CHECK-NOT: lwi r5, r1
+ ; CHECK-NOT: lwi r4, r1
+ ; CHECK-NOT: lwi r3, r1
+ ; CHECK: rtsd r15, 8
+ ret void
+}
+
+ ; CHECK-NOT: .globl _interrupt_handler
+ ; CHECK-NOT: _interrupt_handler = mysvol
+ ; CHECK-NOT: _interrupt_handler = mysvol2
+declare i32 @printf(i8*, ...)