2014-01-06 22:20:53 +08:00
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; RUN: llc < %s -march=xcore | FileCheck %s
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declare i8* @llvm.frameaddress(i32) nounwind readnone
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define i8* @FA0() nounwind {
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entry:
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; CHECK-LABEL: FA0
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; CHECK: ldaw r0, sp[0]
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; CHECK-NEXT: retsp 0
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%0 = call i8* @llvm.frameaddress(i32 0)
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ret i8* %0
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}
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define i8* @FA1() nounwind {
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entry:
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; CHECK-LABEL: FA1
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; CHECK: entsp 100
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; CHECK-NEXT: ldaw r0, sp[0]
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; CHECK-NEXT: retsp 100
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%0 = alloca [100 x i32]
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%1 = call i8* @llvm.frameaddress(i32 0)
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ret i8* %1
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}
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declare i8* @llvm.returnaddress(i32) nounwind readnone
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define i8* @RA0() nounwind {
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entry:
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; CHECK-LABEL: RA0
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; CHECK: stw lr, sp[0]
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; CHECK-NEXT: ldw r0, sp[0]
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; CHECK-NEXT: ldw lr, sp[0]
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; CHECK-NEXT: retsp 0
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%0 = call i8* @llvm.returnaddress(i32 0)
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ret i8* %0
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}
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define i8* @RA1() nounwind {
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entry:
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; CHECK-LABEL: RA1
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; CHECK: entsp 100
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; CHECK-NEXT: ldw r0, sp[100]
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; CHECK-NEXT: retsp 100
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%0 = alloca [100 x i32]
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%1 = call i8* @llvm.returnaddress(i32 0)
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ret i8* %1
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}
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2014-01-06 22:21:00 +08:00
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; test FRAME_TO_ARGS_OFFSET lowering
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declare i8* @llvm.eh.dwarf.cfa(i32) nounwind
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define i8* @FTAO0() nounwind {
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entry:
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; CHECK-LABEL: FTAO0
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; CHECK: ldc r0, 0
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; CHECK-NEXT: ldaw r1, sp[0]
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; CHECK-NEXT: add r0, r1, r0
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; CHECK-NEXT: retsp 0
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%0 = call i8* @llvm.eh.dwarf.cfa(i32 0)
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ret i8* %0
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}
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define i8* @FTAO1() nounwind {
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entry:
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; CHECK-LABEL: FTAO1
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; CHECK: entsp 100
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; CHECK-NEXT: ldc r0, 400
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; CHECK-NEXT: ldaw r1, sp[0]
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; CHECK-NEXT: add r0, r1, r0
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; CHECK-NEXT: retsp 100
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%0 = alloca [100 x i32]
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%1 = call i8* @llvm.eh.dwarf.cfa(i32 0)
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ret i8* %1
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}
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2014-01-06 22:21:07 +08:00
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declare void @llvm.eh.return.i32(i32, i8*)
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define i8* @EH0(i32 %offset, i8* %handler) {
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entry:
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; CHECK-LABEL: EH0
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; CHECK: ldc r2, 0
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; CHECK-NEXT: ldaw r3, sp[0]
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; CHECK-NEXT: add r2, r3, r2
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; CHECK-NEXT: add r2, r2, r0
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; CHECK-NEXT: mov r3, r1
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; CHECK-NEXT: set sp, r2
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; CHECK-NEXT: bau r3
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call void @llvm.eh.return.i32(i32 %offset, i8* %handler)
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unreachable
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}
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declare void @foo(...)
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define i8* @EH1(i32 %offset, i8* %handler) {
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entry:
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; CHECK-LABEL: EH1
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; CHECK: entsp 3
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; CHECK: stw r4, sp[2]
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; CHECK: stw r5, sp[1]
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; CHECK: mov r4, r1
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; CHECK-NEXT: mov r5, r0
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; CHECK-NEXT: bl foo
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; CHECK-NEXT: ldc r0, 12
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; CHECK-NEXT: ldaw r1, sp[0]
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; CHECK-NEXT: add r0, r1, r0
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; CHECK-NEXT: add r2, r0, r5
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; CHECK-NEXT: mov r3, r4
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; CHECK-NEXT: ldw r5, sp[1]
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; CHECK-NEXT: ldw r4, sp[2]
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; CHECK-NEXT: set sp, r2
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; CHECK-NEXT: bau r3
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call void (...)* @foo()
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call void @llvm.eh.return.i32(i32 %offset, i8* %handler)
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unreachable
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}
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@offset = external constant i32
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@handler = external constant i8
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define i8* @EH2(i32 %r0, i32 %r1, i32 %r2, i32 %r3) {
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entry:
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; CHECK-LABEL: EH2
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; CHECK: entsp 1
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; CHECK: bl foo
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; CHECK-NEXT: ldw r0, cp[offset]
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; CHECK-NEXT: ldc r1, 4
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; CHECK-NEXT: ldaw r2, sp[0]
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; CHECK-NEXT: add r1, r2, r1
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; CHECK-NEXT: add r2, r1, r0
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; CHECK-NEXT: ldaw r11, cp[handler]
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; CHECK-NEXT: mov r3, r11
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; CHECK-NEXT: set sp, r2
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; CHECK-NEXT: bau r3
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call void (...)* @foo()
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%0 = load i32* @offset
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call void @llvm.eh.return.i32(i32 %0, i8* @handler)
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unreachable
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}
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