forked from OSchip/llvm-project
187 lines
4.4 KiB
LLVM
187 lines
4.4 KiB
LLVM
;RUN: llc -march=sparc < %s -verify-machineinstrs | FileCheck %s
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;RUN: llc -march=sparc -O0 < %s -verify-machineinstrs | FileCheck %s -check-prefix=UNOPT
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target triple = "sparc-unknown-linux-gnu"
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define i32 @test(i32 %a) nounwind {
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entry:
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; CHECK: test
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; CHECK: call bar
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; CHECK-NOT: nop
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; CHECK: ret
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; CHECK-NEXT: restore
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%0 = tail call i32 @bar(i32 %a) nounwind
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ret i32 %0
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}
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define i32 @test_jmpl(i32 (i32, i32)* nocapture %f, i32 %a, i32 %b) nounwind {
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entry:
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; CHECK: test_jmpl
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; CHECK: call
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; CHECK-NOT: nop
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; CHECK: ret
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; CHECK-NEXT: restore
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%0 = tail call i32 %f(i32 %a, i32 %b) nounwind
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ret i32 %0
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}
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define i32 @test_loop(i32 %a, i32 %b) nounwind readnone {
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; CHECK: test_loop
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entry:
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%0 = icmp sgt i32 %b, 0
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br i1 %0, label %bb, label %bb5
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bb: ; preds = %entry, %bb
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%a_addr.18 = phi i32 [ %a_addr.0, %bb ], [ %a, %entry ]
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%1 = phi i32 [ %3, %bb ], [ 0, %entry ]
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%tmp9 = mul i32 %1, %b
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%2 = and i32 %1, 1
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%tmp = xor i32 %2, 1
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%.pn = shl i32 %tmp9, %tmp
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%a_addr.0 = add i32 %.pn, %a_addr.18
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%3 = add nsw i32 %1, 1
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%exitcond = icmp eq i32 %3, %b
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;CHECK: cmp
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;CHECK: bne
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;CHECK-NOT: nop
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br i1 %exitcond, label %bb5, label %bb
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bb5: ; preds = %bb, %entry
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%a_addr.1.lcssa = phi i32 [ %a, %entry ], [ %a_addr.0, %bb ]
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;CHECK: retl
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;CHECK-NOT: restore
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ret i32 %a_addr.1.lcssa
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}
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define i32 @test_inlineasm(i32 %a) nounwind {
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entry:
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;CHECK-LABEL: test_inlineasm:
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;CHECK: cmp
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;CHECK: sethi
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;CHECK: !NO_APP
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;CHECK-NEXT: ble
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;CHECK-NEXT: mov
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tail call void asm sideeffect "sethi 0, %g0", ""() nounwind
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%0 = icmp slt i32 %a, 0
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br i1 %0, label %bb, label %bb1
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bb: ; preds = %entry
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%1 = tail call i32 (...) @foo(i32 %a) nounwind
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ret i32 %1
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bb1: ; preds = %entry
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%2 = tail call i32 @bar(i32 %a) nounwind
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ret i32 %2
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}
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declare i32 @foo(...)
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declare i32 @bar(i32)
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define i32 @test_implicit_def() nounwind {
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entry:
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;UNOPT-LABEL: test_implicit_def:
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;UNOPT: call func
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;UNOPT-NEXT: nop
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%0 = tail call i32 @func(i32* undef) nounwind
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ret i32 0
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}
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define i32 @prevent_o7_in_call_delay_slot(i32 %i0) {
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entry:
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;CHECK-LABEL: prevent_o7_in_call_delay_slot:
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;CHECK: add %i0, 2, %o5
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;CHECK: add %i0, 3, %o7
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;CHECK: add %o5, %o7, %o0
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;CHECK: call bar
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;CHECK-NEXT: nop
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%0 = add nsw i32 %i0, 2
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%1 = add nsw i32 %i0, 3
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tail call void asm sideeffect "", "r,r,~{l0},~{l1},~{l2},~{l3},~{l4},~{l5},~{l6},~{l7},~{i0},~{i1},~{i2},~{i3},~{i4},~{i5},~{i6},~{i7},~{o0},~{o1},~{o2},~{o3},~{o4},~{o6},~{g1},~{g2},~{g3},~{g4},~{g5},~{g6},~{g7}"(i32 %0, i32 %1)
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%2 = add nsw i32 %0, %1
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%3 = tail call i32 @bar(i32 %2)
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ret i32 %3
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}
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declare i32 @func(i32*)
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define i32 @restore_add(i32 %a, i32 %b) {
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entry:
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;CHECK-LABEL: restore_add:
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;CHECK: ret
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;CHECK: restore %o0, %i1, %o0
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%0 = tail call i32 @bar(i32 %a) nounwind
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%1 = add nsw i32 %0, %b
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ret i32 %1
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}
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define i32 @restore_add_imm(i32 %a) {
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entry:
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;CHECK-LABEL: restore_add_imm:
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;CHECK: ret
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;CHECK: restore %o0, 20, %o0
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%0 = tail call i32 @bar(i32 %a) nounwind
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%1 = add nsw i32 %0, 20
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ret i32 %1
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}
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define i32 @restore_or(i32 %a) {
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entry:
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;CHECK-LABEL: restore_or:
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;CHECK: ret
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;CHECK: restore %g0, %o0, %o0
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%0 = tail call i32 @bar(i32 %a) nounwind
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ret i32 %0
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}
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define i32 @restore_or_imm(i32 %a) {
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entry:
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;CHECK-LABEL: restore_or_imm:
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;CHECK: or %o0, 20, %i0
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;CHECK: ret
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;CHECK-NOT: restore %g0, %g0, %g0
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;CHECK: restore
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%0 = tail call i32 @bar(i32 %a) nounwind
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%1 = or i32 %0, 20
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ret i32 %1
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}
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define i32 @restore_sethi(i32 %a) {
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entry:
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;CHECK-LABEL: restore_sethi:
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;CHECK-NOT: sethi 3
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;CHECK: restore %g0, 3072, %o0
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%0 = tail call i32 @bar(i32 %a) nounwind
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%1 = icmp ne i32 %0, 0
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%2 = select i1 %1, i32 3072, i32 0
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ret i32 %2
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}
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define i32 @restore_sethi_3bit(i32 %a) {
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entry:
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;CHECK-LABEL: restore_sethi_3bit:
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;CHECK: sethi 6
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;CHECK-NOT: restore %g0, 6144, %o0
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%0 = tail call i32 @bar(i32 %a) nounwind
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%1 = icmp ne i32 %0, 0
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%2 = select i1 %1, i32 6144, i32 0
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ret i32 %2
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}
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define i32 @restore_sethi_large(i32 %a) {
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entry:
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;CHECK-LABEL: restore_sethi_large:
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;CHECK: sethi 4000, %i0
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;CHECK-NOT: restore %g0, %g0, %g0
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;CHECK: restore
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%0 = tail call i32 @bar(i32 %a) nounwind
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%1 = icmp ne i32 %0, 0
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%2 = select i1 %1, i32 4096000, i32 0
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ret i32 %2
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}
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