; 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
}
; test FRAME_TO_ARGS_OFFSET lowering
-declare i8* @llvm.eh.dwarf.cfa(i32) nounwind
define i8* @FTAO0() nounwind {
entry:
; CHECK-LABEL: FTAO0
ret i8* %1
}
-declare void @llvm.eh.return.i32(i32, i8*)
define i8* @EH0(i32 %offset, i8* %handler) {
entry:
; CHECK-LABEL: EH0
-; CHECK: ldc r2, 0
+; CHECK: entsp 2
+; CHECK: .cfi_def_cfa_offset 8
+; CHECK: .cfi_offset 15, 0
+; CHECK: .cfi_offset 1, -8
+; CHECK: .cfi_offset 0, -4
+; CHECK: ldc r2, 8
; 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: ldw r1, sp[0]
+; CHECK-NEXT: ldw r0, sp[1]
; CHECK-NEXT: set sp, r2
; CHECK-NEXT: bau r3
call void @llvm.eh.return.i32(i32 %offset, i8* %handler)
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: entsp 5
+; CHECK: .cfi_def_cfa_offset 20
+; CHECK: .cfi_offset 15, 0
+; CHECK: .cfi_offset 1, -16
+; CHECK: .cfi_offset 0, -12
+; CHECK: stw r4, sp[4]
+; CHECK: .cfi_offset 4, -4
+; CHECK: stw r5, sp[3]
+; CHECK: .cfi_offset 5, -8
; CHECK: mov r4, r1
; CHECK-NEXT: mov r5, r0
; CHECK-NEXT: bl foo
-; CHECK-NEXT: ldc r0, 12
+; CHECK-NEXT: ldc r0, 20
; 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: ldw r5, sp[3]
+; CHECK-NEXT: ldw r4, sp[4]
+; CHECK-NEXT: ldw r1, sp[1]
+; CHECK-NEXT: ldw r0, sp[2]
; CHECK-NEXT: set sp, r2
; CHECK-NEXT: bau r3
call void (...)* @foo()
define i8* @EH2(i32 %r0, i32 %r1, i32 %r2, i32 %r3) {
entry:
; CHECK-LABEL: EH2
-; CHECK: entsp 1
+; CHECK: entsp 3
; CHECK: bl foo
-; CHECK-NEXT: ldw r0, cp[offset]
-; CHECK-NEXT: ldc r1, 4
+; CHECK-NEXT: ldw r0, dp[offset]
+; CHECK-NEXT: ldc r1, 12
; 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: ldaw r3, dp[handler]
+; CHECK-NEXT: ldw r1, sp[1]
+; CHECK-NEXT: ldw r0, sp[2]
; CHECK-NEXT: set sp, r2
; CHECK-NEXT: bau r3
call void (...)* @foo()
- %0 = load i32* @offset
+ %0 = load i32, i32* @offset
call void @llvm.eh.return.i32(i32 %0, i8* @handler)
unreachable
}
+
+
+; FP: spill FP+SR+R0:1+R4:9 = entsp 2+2+6
+; But we dont actually spill or restore R0:1
+; CHECKFP-LABEL: Unwind0:
+; CHECKFP: entsp 10
+; CHECKFP: stw r10, sp[1]
+; CHECKFP: ldaw r10, sp[0]
+; CHECKFP: stw r4, r10[9]
+; CHECKFP: stw r5, r10[8]
+; CHECKFP: stw r6, r10[7]
+; CHECKFP: stw r7, r10[6]
+; CHECKFP: stw r8, r10[5]
+; CHECKFP: stw r9, r10[4]
+; CHECKFP: ldw r9, r10[4]
+; CHECKFP: ldw r8, r10[5]
+; CHECKFP: ldw r7, r10[6]
+; CHECKFP: ldw r6, r10[7]
+; CHECKFP: ldw r5, r10[8]
+; CHECKFP: ldw r4, r10[9]
+; CHECKFP: set sp, r10
+; CHECKFP: ldw r10, sp[1]
+; CHECKFP: retsp 10
+;
+; !FP: spill R0:1+R4:10 = entsp 2+7
+; But we dont actually spill or restore R0:1
+; CHECK-LABEL: Unwind0:
+; CHECK: entsp 9
+; CHECK: stw r4, sp[8]
+; CHECK: stw r5, sp[7]
+; CHECK: stw r6, sp[6]
+; CHECK: stw r7, sp[5]
+; CHECK: stw r8, sp[4]
+; CHECK: stw r9, sp[3]
+; CHECK: stw r10, sp[2]
+; CHECK: ldw r10, sp[2]
+; CHECK: ldw r9, sp[3]
+; CHECK: ldw r8, sp[4]
+; CHECK: ldw r7, sp[5]
+; CHECK: ldw r6, sp[6]
+; CHECK: ldw r5, sp[7]
+; CHECK: ldw r4, sp[8]
+; CHECK: retsp 9
+define void @Unwind0() {
+ call void @llvm.eh.unwind.init()
+ ret void
+}
+
+
+; FP: spill FP+SR+R0:1+R4:9+LR = entsp 2+2+6 + extsp 1
+; But we dont actually spill or restore R0:1
+; CHECKFP-LABEL: Unwind1:
+; CHECKFP: entsp 10
+; CHECKFP: stw r10, sp[1]
+; CHECKFP: ldaw r10, sp[0]
+; CHECKFP: stw r4, r10[9]
+; CHECKFP: stw r5, r10[8]
+; CHECKFP: stw r6, r10[7]
+; CHECKFP: stw r7, r10[6]
+; CHECKFP: stw r8, r10[5]
+; CHECKFP: stw r9, r10[4]
+; CHECKFP: extsp 1
+; CHECKFP: bl foo
+; CHECKFP: ldaw sp, sp[1]
+; CHECKFP: ldw r9, r10[4]
+; CHECKFP: ldw r8, r10[5]
+; CHECKFP: ldw r7, r10[6]
+; CHECKFP: ldw r6, r10[7]
+; CHECKFP: ldw r5, r10[8]
+; CHECKFP: ldw r4, r10[9]
+; CHECKFP: set sp, r10
+; CHECKFP: ldw r10, sp[1]
+; CHECKFP: retsp 10
+;
+; !FP: spill R0:1+R4:10+LR = entsp 2+7+1
+; But we dont actually spill or restore R0:1
+; CHECK-LABEL: Unwind1:
+; CHECK: entsp 10
+; CHECK: stw r4, sp[9]
+; CHECK: stw r5, sp[8]
+; CHECK: stw r6, sp[7]
+; CHECK: stw r7, sp[6]
+; CHECK: stw r8, sp[5]
+; CHECK: stw r9, sp[4]
+; CHECK: stw r10, sp[3]
+; CHECK: bl foo
+; CHECK: ldw r10, sp[3]
+; CHECK: ldw r9, sp[4]
+; CHECK: ldw r8, sp[5]
+; CHECK: ldw r7, sp[6]
+; CHECK: ldw r6, sp[7]
+; CHECK: ldw r5, sp[8]
+; CHECK: ldw r4, sp[9]
+; CHECK: retsp 10
+define void @Unwind1() {
+ call void (...)* @foo()
+ call void @llvm.eh.unwind.init()
+ ret void
+}
+
+; FP: spill FP+SR+R0:1+R4:9 = entsp 2+2+6
+; We dont spill R0:1
+; We only restore R0:1 during eh.return
+; CHECKFP-LABEL: UnwindEH:
+; CHECKFP: entsp 10
+; CHECKFP: .cfi_def_cfa_offset 40
+; CHECKFP: .cfi_offset 15, 0
+; CHECKFP: stw r10, sp[1]
+; CHECKFP: .cfi_offset 10, -36
+; CHECKFP: ldaw r10, sp[0]
+; CHECKFP: .cfi_def_cfa_register 10
+; CHECKFP: .cfi_offset 1, -32
+; CHECKFP: .cfi_offset 0, -28
+; CHECKFP: stw r4, r10[9]
+; CHECKFP: .cfi_offset 4, -4
+; CHECKFP: stw r5, r10[8]
+; CHECKFP: .cfi_offset 5, -8
+; CHECKFP: stw r6, r10[7]
+; CHECKFP: .cfi_offset 6, -12
+; CHECKFP: stw r7, r10[6]
+; CHECKFP: .cfi_offset 7, -16
+; CHECKFP: stw r8, r10[5]
+; CHECKFP: .cfi_offset 8, -20
+; CHECKFP: stw r9, r10[4]
+; CHECKFP: .cfi_offset 9, -24
+; CHECKFP: bt r0, .LBB{{[0-9_]+}}
+; CHECKFP: ldw r9, r10[4]
+; CHECKFP-NEXT: ldw r8, r10[5]
+; CHECKFP-NEXT: ldw r7, r10[6]
+; CHECKFP-NEXT: ldw r6, r10[7]
+; CHECKFP-NEXT: ldw r5, r10[8]
+; CHECKFP-NEXT: ldw r4, r10[9]
+; CHECKFP-NEXT: set sp, r10
+; CHECKFP-NEXT: ldw r10, sp[1]
+; CHECKFP-NEXT: retsp 10
+; CHECKFP: .LBB{{[0-9_]+}}
+; CHECKFP-NEXT: ldc r2, 40
+; CHECKFP-NEXT: add r2, r10, r2
+; CHECKFP-NEXT: add r2, r2, r0
+; CHECKFP-NEXT: mov r3, r1
+; CHECKFP-NEXT: ldw r9, r10[4]
+; CHECKFP-NEXT: ldw r8, r10[5]
+; CHECKFP-NEXT: ldw r7, r10[6]
+; CHECKFP-NEXT: ldw r6, r10[7]
+; CHECKFP-NEXT: ldw r5, r10[8]
+; CHECKFP-NEXT: ldw r4, r10[9]
+; CHECKFP-NEXT: ldw r1, sp[2]
+; CHECKFP-NEXT: ldw r0, sp[3]
+; CHECKFP-NEXT: set sp, r2
+; CHECKFP-NEXT: bau r3
+;
+; !FP: spill R0:1+R4:10 = entsp 2+7
+; We dont spill R0:1
+; We only restore R0:1 during eh.return
+; CHECK-LABEL: UnwindEH:
+; CHECK: entsp 9
+; CHECK: .cfi_def_cfa_offset 36
+; CHECK: .cfi_offset 15, 0
+; CHECK: .cfi_offset 1, -36
+; CHECK: .cfi_offset 0, -32
+; CHECK: stw r4, sp[8]
+; CHECK: .cfi_offset 4, -4
+; CHECK: stw r5, sp[7]
+; CHECK: .cfi_offset 5, -8
+; CHECK: stw r6, sp[6]
+; CHECK: .cfi_offset 6, -12
+; CHECK: stw r7, sp[5]
+; CHECK: .cfi_offset 7, -16
+; CHECK: stw r8, sp[4]
+; CHECK: .cfi_offset 8, -20
+; CHECK: stw r9, sp[3]
+; CHECK: .cfi_offset 9, -24
+; CHECK: stw r10, sp[2]
+; CHECK: .cfi_offset 10, -28
+; CHECK: bt r0, .LBB{{[0-9_]+}}
+; CHECK: ldw r10, sp[2]
+; CHECK-NEXT: ldw r9, sp[3]
+; CHECK-NEXT: ldw r8, sp[4]
+; CHECK-NEXT: ldw r7, sp[5]
+; CHECK-NEXT: ldw r6, sp[6]
+; CHECK-NEXT: ldw r5, sp[7]
+; CHECK-NEXT: ldw r4, sp[8]
+; CHECK-NEXT: retsp 9
+; CHECK: .LBB{{[0-9_]+}}
+; CHECK-NEXT: ldc r2, 36
+; 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: ldw r10, sp[2]
+; CHECK-NEXT: ldw r9, sp[3]
+; CHECK-NEXT: ldw r8, sp[4]
+; CHECK-NEXT: ldw r7, sp[5]
+; CHECK-NEXT: ldw r6, sp[6]
+; CHECK-NEXT: ldw r5, sp[7]
+; CHECK-NEXT: ldw r4, sp[8]
+; CHECK-NEXT: ldw r1, sp[0]
+; CHECK-NEXT: ldw r0, sp[1]
+; CHECK-NEXT: set sp, r2
+; CHECK-NEXT: bau r3
+define void @UnwindEH(i32 %offset, i8* %handler) {
+ call void @llvm.eh.unwind.init()
+ %cmp = icmp eq i32 %offset, 0
+ br i1 %cmp, label %normal, label %eh
+eh:
+ call void @llvm.eh.return.i32(i32 %offset, i8* %handler)
+ unreachable
+normal:
+ ret void
+}
projects / oota-llvm.git / blobdiff