diff --git a/llvm/test/CodeGen/AArch64/apply-terminal-rule.mir b/llvm/test/CodeGen/AArch64/apply-terminal-rule.mir new file mode 100644 index 0000000000000..917616fadfee1 --- /dev/null +++ b/llvm/test/CodeGen/AArch64/apply-terminal-rule.mir @@ -0,0 +1,136 @@ +# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py UTC_ARGS: --version 6 +# RUN: llc -mtriple=aarch64 -run-pass=register-coalescer -terminal-rule=1 -o - %s | FileCheck %s + +# Apply terminal rule for: %5 +--- | + @A = external dso_local global [100 x i32], align 4 + + define i32 @test(i32 %n) { + entry: + %cmp63 = icmp sgt i32 %n, 0 + br i1 %cmp63, label %for.body.preheader, label %for.cond.cleanup + + for.body.preheader: ; preds = %entry + %0 = load i32, i32* getelementptr inbounds ([100 x i32], [100 x i32]* @A, i64 0, i64 0), align 4 + br label %for.body + + for.cond.cleanup: ; preds = %for.body, %entry + %sum.0.lcssa = phi i32 [ %n, %entry ], [ %div, %for.body ] + ret i32 %sum.0.lcssa + + for.body: ; preds = %for.body, %for.body.preheader + %lsr.iv = phi i32 [ %n, %for.body.preheader ], [ %lsr.iv.next, %for.body ] + %sum.065 = phi i32 [ %div, %for.body ], [ %n, %for.body.preheader ] + %call = tail call i32 @_Z3usei(i32 %0) + %div = sdiv i32 %sum.065, %call + %lsr.iv.next = add i32 %lsr.iv, -1 + %exitcond.not = icmp eq i32 %lsr.iv.next, 0 + br i1 %exitcond.not, label %for.cond.cleanup, label %for.body + } + + declare i32 @_Z3usei(i32) + +... +--- +name: test +alignment: 4 +tracksRegLiveness: true +liveins: + - { reg: '$w0', virtual-reg: '%6' } +frameInfo: + maxAlignment: 1 + adjustsStack: true + hasCalls: true + maxCallFrameSize: 0 +machineFunctionInfo: {} +body: | + ; CHECK-LABEL: name: test + ; CHECK: bb.0.entry: + ; CHECK-NEXT: successors: %bb.1(0x50000000), %bb.4(0x30000000) + ; CHECK-NEXT: liveins: $w0 + ; CHECK-NEXT: {{ $}} + ; CHECK-NEXT: [[COPY:%[0-9]+]]:gpr32common = COPY $w0 + ; CHECK-NEXT: dead $wzr = SUBSWri [[COPY]], 1, 0, implicit-def $nzcv + ; CHECK-NEXT: Bcc 10, %bb.1, implicit killed $nzcv + ; CHECK-NEXT: B %bb.4 + ; CHECK-NEXT: {{ $}} + ; CHECK-NEXT: bb.1.for.body.preheader: + ; CHECK-NEXT: successors: %bb.3(0x80000000) + ; CHECK-NEXT: {{ $}} + ; CHECK-NEXT: [[ADRP:%[0-9]+]]:gpr64common = ADRP target-flags(aarch64-page) @A + ; CHECK-NEXT: [[LDRWui:%[0-9]+]]:gpr32 = LDRWui [[ADRP]], target-flags(aarch64-pageoff, aarch64-nc) @A :: (dereferenceable load (s32) from @A) + ; CHECK-NEXT: [[COPY1:%[0-9]+]]:gpr32common = COPY [[COPY]] + ; CHECK-NEXT: B %bb.3 + ; CHECK-NEXT: {{ $}} + ; CHECK-NEXT: bb.2.for.cond.cleanup: + ; CHECK-NEXT: $w0 = COPY [[COPY]] + ; CHECK-NEXT: RET_ReallyLR implicit $w0 + ; CHECK-NEXT: {{ $}} + ; CHECK-NEXT: bb.3.for.body: + ; CHECK-NEXT: successors: %bb.2(0x04000000), %bb.3(0x7c000000) + ; CHECK-NEXT: {{ $}} + ; CHECK-NEXT: ADJCALLSTACKDOWN 0, 0, implicit-def dead $sp, implicit $sp + ; CHECK-NEXT: $w0 = COPY [[LDRWui]] + ; CHECK-NEXT: BL @_Z3usei, csr_aarch64_aapcs, implicit-def dead $lr, implicit $sp, implicit $w0, implicit-def $sp, implicit-def $w0 + ; CHECK-NEXT: ADJCALLSTACKUP 0, 0, implicit-def dead $sp, implicit $sp + ; CHECK-NEXT: [[COPY2:%[0-9]+]]:gpr32 = COPY $w0 + ; CHECK-NEXT: [[COPY:%[0-9]+]]:gpr32common = SDIVWr [[COPY]], [[COPY2]] + ; CHECK-NEXT: [[COPY1:%[0-9]+]]:gpr32common = SUBSWri [[COPY1]], 1, 0, implicit-def $nzcv + ; CHECK-NEXT: Bcc 0, %bb.2, implicit killed $nzcv + ; CHECK-NEXT: B %bb.3 + ; CHECK-NEXT: {{ $}} + ; CHECK-NEXT: bb.4: + ; CHECK-NEXT: successors: %bb.2(0x80000000) + ; CHECK-NEXT: {{ $}} + ; CHECK-NEXT: B %bb.2 + bb.0.entry: + successors: %bb.1(0x50000000), %bb.4(0x30000000) + liveins: $w0 + + %0:gpr32common = COPY $w0 + dead $wzr = SUBSWri %0:gpr32common, 1, 0, implicit-def $nzcv + Bcc 10, %bb.1, implicit killed $nzcv + B %bb.4 + + bb.1.for.body.preheader: + successors: %bb.3(0x80000000) + + %1:gpr64common = ADRP target-flags(aarch64-page) @A + %2:gpr32 = LDRWui %1:gpr64common, target-flags(aarch64-pageoff, aarch64-nc) @A :: (dereferenceable load (s32) from `i32* getelementptr inbounds ([100 x i32], [100 x i32]* @A, i64 0, i64 0)`) + %3:gpr32all = COPY %2:gpr32 + %4:gpr32sp = COPY %0:gpr32common + %5:gpr32 = COPY %0:gpr32common + B %bb.3 + + bb.2.for.cond.cleanup: + %6:gpr32all = COPY %7:gpr32all + $w0 = COPY %6:gpr32all + RET_ReallyLR implicit $w0 + + bb.3.for.body: + successors: %bb.2(0x04000000), %bb.3(0x7c000000) + + %8:gpr32 = COPY %5:gpr32 + %9:gpr32sp = COPY %4:gpr32sp + ADJCALLSTACKDOWN 0, 0, implicit-def dead $sp, implicit $sp + $w0 = COPY %3:gpr32all + BL @_Z3usei, csr_aarch64_aapcs, implicit-def dead $lr, implicit $sp,implicit killed $w0, implicit-def $sp, implicit-def $w0 + ADJCALLSTACKUP 0, 0, implicit-def dead $sp, implicit $sp + %10:gpr32 = COPY $w0 + %11:gpr32 = SDIVWr %8:gpr32, %10:gpr32 + %12:gpr32all = COPY %11:gpr32 + %13:gpr32 = SUBSWri %9:gpr32sp, 1, 0, implicit-def $nzcv + %14:gpr32all = COPY %13:gpr32 + %7:gpr32all = COPY %12:gpr32all + %4:gpr32sp = COPY %14:gpr32all + %5:gpr32 = COPY %12:gpr32all + Bcc 0, %bb.2, implicit killed $nzcv + B %bb.3 + + bb.4: + successors: %bb.2(0x80000000) + + %7:gpr32all = COPY %0:gpr32common + B %bb.2 + +...