; RUN: llc < %s -march=xcore | FileCheck %s
+; RUN: llc < %s -march=xcore -disable-fp-elim | FileCheck %s -check-prefix=CHECKFP
declare i8* @llvm.frameaddress(i32) nounwind readnone
+declare i8* @llvm.returnaddress(i32) nounwind
+declare i8* @llvm.eh.dwarf.cfa(i32) nounwind
+declare void @llvm.eh.return.i32(i32, i8*) nounwind
+declare void @llvm.eh.unwind.init() nounwind
+
define i8* @FA0() nounwind {
entry:
; CHECK-LABEL: FA0
ret i8* %1
}
-
-declare i8* @llvm.returnaddress(i32) nounwind readnone
define i8* @RA0() nounwind {
entry:
; CHECK-LABEL: RA0
%1 = call i8* @llvm.returnaddress(i32 0)
ret i8* %1
}
+
+; test FRAME_TO_ARGS_OFFSET lowering
+define i8* @FTAO0() nounwind {
+entry:
+; CHECK-LABEL: FTAO0
+; CHECK: ldc r0, 0
+; CHECK-NEXT: ldaw r1, sp[0]
+; CHECK-NEXT: add r0, r1, r0
+; CHECK-NEXT: retsp 0
+ %0 = call i8* @llvm.eh.dwarf.cfa(i32 0)
+ ret i8* %0
+}
+
+define i8* @FTAO1() nounwind {
+entry:
+; CHECK-LABEL: FTAO1
+; CHECK: entsp 100
+; CHECK-NEXT: ldc r0, 400
+; CHECK-NEXT: ldaw r1, sp[0]
+; CHECK-NEXT: add r0, r1, r0
+; CHECK-NEXT: retsp 100
+ %0 = alloca [100 x i32]
+ %1 = call i8* @llvm.eh.dwarf.cfa(i32 0)
+ ret i8* %1
+}
+
+define i8* @EH0(i32 %offset, i8* %handler) {
+entry:
+; CHECK-LABEL: EH0
+; CHECK: ldc r2, 0
+; CHECK-NEXT: ldaw r3, sp[0]
+; CHECK-NEXT: add r2, r3, r2
+; CHECK-NEXT: add r2, r2, r0
+; CHECK-NEXT: mov r3, r1
+; CHECK-NEXT: set sp, r2
+; CHECK-NEXT: bau r3
+ call void @llvm.eh.return.i32(i32 %offset, i8* %handler)
+ unreachable
+}
+
+declare void @foo(...)
+define i8* @EH1(i32 %offset, i8* %handler) {
+entry:
+; CHECK-LABEL: EH1
+; CHECK: entsp 3
+; CHECK: stw r4, sp[2]
+; CHECK: stw r5, sp[1]
+; CHECK: mov r4, r1
+; CHECK-NEXT: mov r5, r0
+; CHECK-NEXT: bl foo
+; CHECK-NEXT: ldc r0, 12
+; CHECK-NEXT: ldaw r1, sp[0]
+; CHECK-NEXT: add r0, r1, r0
+; CHECK-NEXT: add r2, r0, r5
+; CHECK-NEXT: mov r3, r4
+; CHECK-NEXT: ldw r5, sp[1]
+; CHECK-NEXT: ldw r4, sp[2]
+; CHECK-NEXT: set sp, r2
+; CHECK-NEXT: bau r3
+ call void (...)* @foo()
+ call void @llvm.eh.return.i32(i32 %offset, i8* %handler)
+ unreachable
+}
+
+@offset = external constant i32
+@handler = external constant i8
+define i8* @EH2(i32 %r0, i32 %r1, i32 %r2, i32 %r3) {
+entry:
+; CHECK-LABEL: EH2
+; CHECK: entsp 1
+; CHECK: bl foo
+; CHECK-NEXT: ldw r0, cp[offset]
+; CHECK-NEXT: ldc r1, 4
+; CHECK-NEXT: ldaw r2, sp[0]
+; CHECK-NEXT: add r1, r2, r1
+; CHECK-NEXT: add r2, r1, r0
+; CHECK-NEXT: ldaw r11, cp[handler]
+; CHECK-NEXT: mov r3, r11
+; CHECK-NEXT: set sp, r2
+; CHECK-NEXT: bau r3
+ call void (...)* @foo()
+ %0 = load i32* @offset
+ call void @llvm.eh.return.i32(i32 %0, i8* @handler)
+ unreachable
+}
+
+
+; FP: spill FP+SR+R4:9 = entsp 2 + 6
+; CHECKFP-LABEL: Unwind0:
+; CHECKFP: entsp 8
+; CHECKFP: stw r10, sp[1]
+; CHECKFP: ldaw r10, sp[0]
+; CHECKFP: stw r4, r10[7]
+; CHECKFP: stw r5, r10[6]
+; CHECKFP: stw r6, r10[5]
+; CHECKFP: stw r7, r10[4]
+; CHECKFP: stw r8, r10[3]
+; CHECKFP: stw r9, r10[2]
+; CHECKFP: ldw r9, r10[2]
+; CHECKFP: ldw r8, r10[3]
+; CHECKFP: ldw r7, r10[4]
+; CHECKFP: ldw r6, r10[5]
+; CHECKFP: ldw r5, r10[6]
+; CHECKFP: ldw r4, r10[7]
+; CHECKFP: set sp, r10
+; CHECKFP: ldw r10, sp[1]
+; CHECKFP: retsp 8
+;
+; !FP: spill R4:10 = entsp 7
+; CHECK-LABEL: Unwind0:
+; CHECK: entsp 7
+; CHECK: stw r4, sp[6]
+; CHECK: stw r5, sp[5]
+; CHECK: stw r6, sp[4]
+; CHECK: stw r7, sp[3]
+; CHECK: stw r8, sp[2]
+; CHECK: stw r9, sp[1]
+; CHECK: stw r10, sp[0]
+; CHECK: ldw r10, sp[0]
+; CHECK: ldw r9, sp[1]
+; CHECK: ldw r8, sp[2]
+; CHECK: ldw r7, sp[3]
+; CHECK: ldw r6, sp[4]
+; CHECK: ldw r5, sp[5]
+; CHECK: ldw r4, sp[6]
+; CHECK: retsp 7
+define void @Unwind0() {
+ call void @llvm.eh.unwind.init()
+ ret void
+}
+
+
+; FP: spill FP+SR+R4:9+LR = entsp 2 + 6 + extsp 1
+; CHECKFP-LABEL: Unwind1:
+; CHECKFP: entsp 8
+; CHECKFP: stw r10, sp[1]
+; CHECKFP: ldaw r10, sp[0]
+; CHECKFP: stw r4, r10[7]
+; CHECKFP: stw r5, r10[6]
+; CHECKFP: stw r6, r10[5]
+; CHECKFP: stw r7, r10[4]
+; CHECKFP: stw r8, r10[3]
+; CHECKFP: stw r9, r10[2]
+; CHECKFP: extsp 1
+; CHECKFP: bl foo
+; CHECKFP: ldaw sp, sp[1]
+; CHECKFP: ldw r9, r10[2]
+; CHECKFP: ldw r8, r10[3]
+; CHECKFP: ldw r7, r10[4]
+; CHECKFP: ldw r6, r10[5]
+; CHECKFP: ldw r5, r10[6]
+; CHECKFP: ldw r4, r10[7]
+; CHECKFP: set sp, r10
+; CHECKFP: ldw r10, sp[1]
+; CHECKFP: retsp 8
+;
+; !FP: spill R4:10+LR = entsp 7 + 1
+; CHECK-LABEL: Unwind1:
+; CHECK: entsp 8
+; CHECK: stw r4, sp[7]
+; CHECK: stw r5, sp[6]
+; CHECK: stw r6, sp[5]
+; CHECK: stw r7, sp[4]
+; CHECK: stw r8, sp[3]
+; CHECK: stw r9, sp[2]
+; CHECK: stw r10, sp[1]
+; CHECK: bl foo
+; CHECK: ldw r10, sp[1]
+; CHECK: ldw r9, sp[2]
+; CHECK: ldw r8, sp[3]
+; CHECK: ldw r7, sp[4]
+; CHECK: ldw r6, sp[5]
+; CHECK: ldw r5, sp[6]
+; CHECK: ldw r4, sp[7]
+; CHECK: retsp 8
+define void @Unwind1() {
+ call void (...)* @foo()
+ call void @llvm.eh.unwind.init()
+ ret void
+}
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