| ; REQUIRES: aarch64-registered-target |
| ; REQUIRES: x86-registered-target |
| |
| ; COM: Machine function splitting with FDO profiles |
| ; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu -split-machine-functions | FileCheck %s -check-prefixes=MFS-DEFAULTS,MFS-DEFAULTS-X86 |
| ; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu -split-machine-functions -mfs-psi-cutoff=0 -mfs-count-threshold=2000 | FileCheck %s --dump-input=always -check-prefixes=MFS-OPTS1,MFS-OPTS1-X86 |
| ; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu -split-machine-functions -mfs-psi-cutoff=950000 | FileCheck %s -check-prefixes=MFS-OPTS2,MFS-OPTS2-X86 |
| ; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu -split-machine-functions -mfs-split-ehcode | FileCheck %s -check-prefixes=MFS-EH-SPLIT,MFS-EH-SPLIT-X86 |
| ; RUN: llc < %s -mtriple=x86_64 -split-machine-functions -O0 -mfs-psi-cutoff=0 -mfs-count-threshold=10000 | FileCheck %s -check-prefixes=MFS-O0,MFS-O0-X86 |
| |
| ; RUN: llc < %s -mtriple=aarch64-unknown-linux-gnu -aarch64-min-jump-table-entries=4 -enable-split-machine-functions | FileCheck %s -check-prefixes=MFS-DEFAULTS,MFS-DEFAULTS-AARCH64 |
| ; RUN: llc < %s -mtriple=aarch64-unknown-linux-gnu -aarch64-min-jump-table-entries=4 -enable-split-machine-functions -mfs-psi-cutoff=0 -mfs-count-threshold=2000 | FileCheck %s --dump-input=always -check-prefixes=MFS-OPTS1,MFS-OPTS1-AARCH64 |
| ; RUN: llc < %s -mtriple=aarch64-unknown-linux-gnu -aarch64-min-jump-table-entries=4 -enable-split-machine-functions -mfs-psi-cutoff=950000 | FileCheck %s -check-prefixes=MFS-OPTS2,MFS-OPTS2-AARCH64 |
| ; RUN: llc < %s -mtriple=aarch64-unknown-linux-gnu -aarch64-min-jump-table-entries=4 -enable-split-machine-functions -mfs-split-ehcode | FileCheck %s -check-prefixes=MFS-EH-SPLIT,MFS-EH-SPLIT-AARCH64 |
| ; RUN: llc < %s -mtriple=aarch64 -split-machine-functions -O0 -mfs-psi-cutoff=0 -mfs-count-threshold=10000 | FileCheck %s -check-prefixes=MFS-O0,MFS-O0-AARCH64 |
| ; RUN: llc < %s -mtriple=aarch64 -enable-split-machine-functions -aarch64-redzone | FileCheck %s -check-prefixes=MFS-REDZONE-AARCH64 |
| |
| ; COM: Machine function splitting with AFDO profiles |
| ; RUN: sed 's/InstrProf/SampleProfile/g' %s > %t.ll |
| ; RUN: llc < %t.ll -mtriple=x86_64-unknown-linux-gnu -split-machine-functions | FileCheck %s --check-prefix=FSAFDO-MFS |
| ; RUN: llc < %t.ll -mtriple=x86_64-unknown-linux-gnu -split-machine-functions | FileCheck %s --check-prefix=FSAFDO-MFS2 |
| |
| define void @foo1(i1 zeroext %0) nounwind !prof !14 !section_prefix !15 { |
| ;; Check that cold block is moved to .text.split. |
| ; MFS-DEFAULTS-LABEL: foo1 |
| ; MFS-DEFAULTS: .section .text.split.foo1 |
| ; MFS-DEFAULTS-NEXT: foo1.cold: |
| ; MFS-DEFAULTS-X86-NOT: callq bar |
| ; MFS-DEFAULTS-X86-NEXT: callq baz |
| ; MFS-DEFAULTS-AARCH64-NOT: bl bar |
| ; MFS-DEFAULTS-AARCH64-NEXT: bl baz |
| br i1 %0, label %2, label %4, !prof !17 |
| |
| 2: ; preds = %1 |
| %3 = call i32 @bar() |
| br label %6 |
| |
| 4: ; preds = %1 |
| %5 = call i32 @baz() |
| br label %6 |
| |
| 6: ; preds = %4, %2 |
| %7 = tail call i32 @qux() |
| ret void |
| } |
| |
| define void @foo2(i1 zeroext %0) nounwind !prof !23 !section_prefix !16 { |
| ;; Check that function marked unlikely is not split. |
| ; MFS-DEFAULTS-LABEL: foo2 |
| ; MFS-DEFAULTS-NOT: foo2.cold: |
| br i1 %0, label %2, label %4, !prof !17 |
| |
| 2: ; preds = %1 |
| %3 = call i32 @bar() |
| br label %6 |
| |
| 4: ; preds = %1 |
| %5 = call i32 @baz() |
| br label %6 |
| |
| 6: ; preds = %4, %2 |
| %7 = tail call i32 @qux() |
| ret void |
| } |
| |
| define void @foo3(i1 zeroext %0) nounwind !section_prefix !15 { |
| ;; Check that function without profile data is not split. |
| ; MFS-DEFAULTS-LABEL: foo3 |
| ; MFS-DEFAULTS-NOT: foo3.cold: |
| br i1 %0, label %2, label %4 |
| |
| 2: ; preds = %1 |
| %3 = call i32 @bar() |
| br label %6 |
| |
| 4: ; preds = %1 |
| %5 = call i32 @baz() |
| br label %6 |
| |
| 6: ; preds = %4, %2 |
| %7 = tail call i32 @qux() |
| ret void |
| } |
| |
| define void @foo4(i1 zeroext %0, i1 zeroext %1) nounwind !prof !20 { |
| ;; Check that count threshold works. |
| ; MFS-OPTS1-LABEL: foo4 |
| ; MFS-OPTS1: .section .text.split.foo4 |
| ; MFS-OPTS1-NEXT: foo4.cold: |
| ; MFS-OPTS1-X86-NOT: callq bar |
| ; MFS-OPTS1-X86-NOT: callq baz |
| ; MFS-OPTS1-X86-NEXT: callq bam |
| ; MFS-OPTS1-AARCH64-NOT: bl bar |
| ; MFS-OPTS1-AARCH64-NOT: bl baz |
| ; MFS-OPTS1-AARCH64-NEXT: bl bam |
| br i1 %0, label %3, label %7, !prof !18 |
| |
| 3: |
| %4 = call i32 @bar() |
| br label %7 |
| |
| 5: |
| %6 = call i32 @baz() |
| br label %7 |
| |
| 7: |
| br i1 %1, label %8, label %10, !prof !19 |
| |
| 8: |
| %9 = call i32 @bam() |
| br label %12 |
| |
| 10: |
| %11 = call i32 @baz() |
| br label %12 |
| |
| 12: |
| %13 = tail call i32 @qux() |
| ret void |
| } |
| |
| define void @foo5(i1 zeroext %0, i1 zeroext %1) nounwind !prof !20 { |
| ;; Check that profile summary info cutoff works. |
| ; MFS-OPTS2-LABEL: foo5 |
| ; MFS-OPTS2: .section .text.split.foo5 |
| ; MFS-OPTS2-NEXT: foo5.cold: |
| ; MFS-OPTS2-X86-NOT: callq bar |
| ; MFS-OPTS2-X86-NOT: callq baz |
| ; MFS-OPTS2-X86-NEXT: callq bam |
| ; MFS-OPTS2-AARCH64-NOT: bl bar |
| ; MFS-OPTS2-AARCH64-NOT: bl baz |
| ; MFS-OPTS2-AARCH64-NEXT: bl bam |
| br i1 %0, label %3, label %7, !prof !21 |
| |
| 3: |
| %4 = call i32 @bar() |
| br label %7 |
| |
| 5: |
| %6 = call i32 @baz() |
| br label %7 |
| |
| 7: |
| br i1 %1, label %8, label %10, !prof !22 |
| |
| 8: |
| %9 = call i32 @bam() |
| br label %12 |
| |
| 10: |
| %11 = call i32 @baz() |
| br label %12 |
| |
| 12: |
| %13 = call i32 @qux() |
| ret void |
| } |
| |
| define void @foo6(i1 zeroext %0) nounwind section "nosplit" !prof !14 { |
| ;; Check that function with section attribute is not split. |
| ; MFS-DEFAULTS-LABEL: foo6 |
| ; MFS-DEFAULTS-NOT: foo6.cold: |
| br i1 %0, label %2, label %4, !prof !17 |
| |
| 2: ; preds = %1 |
| %3 = call i32 @bar() |
| br label %6 |
| |
| 4: ; preds = %1 |
| %5 = call i32 @baz() |
| br label %6 |
| |
| 6: ; preds = %4, %2 |
| %7 = tail call i32 @qux() |
| ret void |
| } |
| |
| define i32 @foo7(i1 zeroext %0) personality ptr @__gxx_personality_v0 !prof !14 { |
| ;; Check that a single cold ehpad is split out. |
| ; MFS-DEFAULTS-LABEL: foo7 |
| ; MFS-DEFAULTS: .section .text.split.foo7,"ax",@progbits |
| ; MFS-DEFAULTS-NEXT: foo7.cold: |
| ; MFS-DEFAULTS-X86: callq baz |
| ; MFS-DEFAULTS-X86: callq _Unwind_Resume@PLT |
| ; MFS-DEFAULTS-AARCH64: bl baz |
| entry: |
| invoke void @_Z1fv() |
| to label %try.cont unwind label %lpad |
| |
| lpad: |
| %1 = landingpad { ptr, i32 } |
| cleanup |
| catch ptr @_ZTIi |
| resume { ptr, i32 } %1 |
| |
| try.cont: |
| br i1 %0, label %2, label %4, !prof !17 |
| |
| 2: ; preds = try.cont |
| %3 = call i32 @bar() |
| br label %6 |
| |
| 4: ; preds = %1 |
| %5 = call i32 @baz() |
| br label %6 |
| |
| 6: ; preds = %4, %2 |
| %7 = tail call i32 @qux() |
| ret i32 %7 |
| } |
| |
| define i32 @foo8(i1 zeroext %0) personality ptr @__gxx_personality_v0 !prof !14 { |
| ;; Check that all ehpads are treated as hot if one of them is hot. |
| ; MFS-DEFAULTS-LABEL: foo8 |
| ; MFS-DEFAULTS-X86: callq _Unwind_Resume@PLT |
| ; MFS-DEFAULTS-X86: callq _Unwind_Resume@PLT |
| ; MFS-DEFAULTS: .section .text.split.foo8,"ax",@progbits |
| ; MFS-DEFAULTS-NEXT: foo8.cold: |
| ; MFS-DEFAULTS-X86: callq baz |
| ; MFS-DEFAULTS-AARCH64: bl baz |
| |
| ;; Check that all ehpads are by default treated as cold with -mfs-split-ehcode. |
| ; MFS-EH-SPLIT-LABEL: foo8 |
| ; MFS-EH-SPLIT-X86: callq baz |
| ; MFS-EH-SPLIT-AARCH64: bl baz |
| ; MFS-EH-SPLIT-X86: .section .text.split.foo8,"ax",@progbits |
| ; MFS-EH-SPLIT-X86-NEXT: foo8.cold: |
| ; MFS-EH-SPLIT-X86: callq _Unwind_Resume@PLT |
| ; MFS-EH-SPLIT-X86: callq _Unwind_Resume@PLT |
| entry: |
| invoke void @_Z1fv() |
| to label %try.cont unwind label %lpad1 |
| |
| lpad1: |
| %1 = landingpad { ptr, i32 } |
| cleanup |
| catch ptr @_ZTIi |
| resume { ptr, i32 } %1 |
| |
| try.cont: |
| br i1 %0, label %hot, label %cold, !prof !17 |
| |
| hot: |
| %2 = call i32 @bar() |
| invoke void @_Z1fv() |
| to label %exit unwind label %lpad2, !prof !21 |
| |
| lpad2: |
| %3 = landingpad { ptr, i32 } |
| cleanup |
| catch ptr @_ZTIi |
| resume { ptr, i32 } %3 |
| |
| cold: |
| %4 = call i32 @baz() |
| br label %exit |
| |
| exit: |
| %5 = tail call i32 @qux() |
| ret i32 %5 |
| } |
| |
| define i32 @foo10(i1 zeroext %0) personality ptr @__gxx_personality_v0 !prof !14 { |
| ;; Check that nop is inserted just before the EH pad if it's beginning a section. |
| ; MFS-DEFAULTS-LABEL: foo10 |
| ; MFS-DEFAULTS-X86-LABEL: callq baz |
| ; MFS-DEFAULTS-AARCH64: bl baz |
| ; MFS-DEFAULTS-X86: .section .text.split.foo10,"ax",@progbits |
| ; MFS-DEFAULTS-X86-NEXT: foo10.cold: |
| ; MFS-DEFAULTS-X86: nop |
| ; MFS-DEFAULTS-X86: callq _Unwind_Resume@PLT |
| entry: |
| invoke void @_Z1fv() |
| to label %try.cont unwind label %lpad, !prof !17 |
| |
| lpad: |
| %1 = landingpad { ptr, i32 } |
| cleanup |
| catch ptr @_ZTIi |
| resume { ptr, i32 } %1 |
| |
| try.cont: |
| %2 = call i32 @baz() |
| ret i32 %2 |
| } |
| |
| define void @foo11(i1 zeroext %0) personality ptr @__gxx_personality_v0 { |
| ;; Check that function having landing pads are split with mfs-split-ehcode |
| ;; even in the absence of profile data |
| ; MFS-EH-SPLIT-LABEL: foo11 |
| ; MFS-EH-SPLIT-X86: .section .text.split.foo11,"ax",@progbits |
| ; MFS-EH-SPLIT-X86-NEXT: foo11.cold: |
| ; MFS-EH-SPLIT-X86: nop |
| ; MFS-EH-SPLIT-X86: callq _Unwind_Resume@PLT |
| entry: |
| invoke void @_Z1fv() |
| to label %2 unwind label %lpad |
| |
| lpad: |
| %1 = landingpad { ptr, i32 } |
| cleanup |
| catch ptr @_ZTIi |
| resume { ptr, i32 } %1 |
| |
| 2: ; preds = entry |
| %3 = tail call i32 @qux() |
| ret void |
| } |
| |
| define i32 @foo12(i1 zeroext %0) personality ptr @__gxx_personality_v0 !prof !14 { |
| ;; Check that all code reachable from ehpad is split out with cycles. |
| ; MFS-EH-SPLIT-LABEL: foo12 |
| ; MFS-EH-SPLIT: .section .text.split.foo12,"ax",@progbits |
| ; MFS-EH-SPLIT-NEXT: foo12.cold: |
| ; MFS-EH-SPLIT-X86: callq bar |
| ; MFS-EH-SPLIT-X86: callq baz |
| ; MFS-EH-SPLIT-X86: callq qux |
| ; MFS-EH-SPLIT-AARCH64: bl bar |
| ; MFS-EH-SPLIT-AARCH64: bl baz |
| ; MFS-EH-SPLIT-AARCH64: bl qux |
| entry: |
| invoke void @_Z1fv() |
| to label %8 unwind label %lpad |
| |
| lpad: |
| %1 = landingpad { ptr, i32 } |
| cleanup |
| catch ptr @_ZTIi |
| br label %2 |
| |
| 2: ; preds = lpad |
| %3 = call i32 @bar() |
| br i1 %0, label %4, label %6 |
| |
| 4: ; preds = lpad |
| %5 = call i32 @baz() |
| br label %6 |
| |
| 6: ; preds = %4, %2 |
| %7 = tail call i32 @qux() |
| br i1 %0, label %2, label %8 |
| |
| 8: ; preds = %6 |
| ret i32 0 |
| } |
| |
| define i32 @foo13(i1 zeroext %0) personality ptr @__gxx_personality_v0 !prof !14{ |
| ;; Check that all code reachable from EH |
| ;; that is also reachable from outside EH pad |
| ;; is not touched. |
| ; MFS-EH-SPLIT-LABEL: foo13 |
| ; MFS-EH-SPLIT-X86: callq bam |
| ; MFS-EH-SPLIT-AARCH64: bl bam |
| ; MFS-EH-SPLIT: .section .text.split.foo13,"ax",@progbits |
| ; MFS-EH-SPLIT-NEXT: foo13.cold: |
| ; MFS-EH-SPLIT-X86: callq baz |
| ; MFS-EH-SPLIT-X86: callq bar |
| ; MFS-EH-SPLIT-X86: callq qux |
| ; MFS-EH-SPLIT-AARCH64: bl baz |
| ; MFS-EH-SPLIT-AARCH64: bl bar |
| ; MFS-EH-SPLIT-AARCH64: bl qux |
| entry: |
| invoke void @_Z1fv() |
| to label %try.cont unwind label %lpad, !prof !17 |
| |
| lpad: |
| %1 = landingpad { ptr, i32 } |
| cleanup |
| catch ptr @_ZTIi |
| br i1 %0, label %2, label %4, !prof !17 |
| |
| 2: ; preds = lpad |
| %3 = call i32 @bar() |
| br label %6 |
| |
| 4: ; preds = lpad |
| %5 = call i32 @baz() |
| br label %6 |
| |
| 6: ; preds = %4, %2 |
| %7 = tail call i32 @qux() |
| br i1 %0, label %2, label %try.cont, !prof !17 |
| |
| try.cont: ; preds = %entry |
| %8 = call i32 @bam() |
| ret i32 %8 |
| } |
| |
| define void @foo14(i1 zeroext %0, i1 zeroext %1) nounwind !prof !24 { |
| ; FSAFDO-MFS: .section .text.split.foo14,"ax" |
| ; FSAFDO-MFS: foo14.cold: |
| br i1 %0, label %3, label %7, !prof !25 |
| |
| 3: |
| %4 = call i32 @bar() |
| br label %7 |
| |
| 5: |
| %6 = call i32 @baz() |
| br label %7 |
| |
| 7: |
| br i1 %1, label %8, label %10, !prof !26 |
| |
| 8: |
| %9 = call i32 @bam() |
| br label %12 |
| |
| 10: |
| %11 = call i32 @baz() |
| br label %12 |
| |
| 12: |
| %13 = tail call i32 @qux() |
| ret void |
| } |
| |
| define void @foo15(i1 zeroext %0, i1 zeroext %1) nounwind !prof !27 { |
| ;; HasAccurateProfile is false, foo15 is hot, but no profile data for |
| ;; blocks, no split should happen. |
| ; FSAFDO-MFS2-NOT: .section .text.split.foo15,"ax" |
| ; FSAFDO-MFS2-NOT: foo15.cold: |
| br i1 %0, label %3, label %7 |
| |
| 3: |
| %4 = call i32 @bar() |
| br label %7 |
| |
| 5: |
| %6 = call i32 @baz() |
| br label %7 |
| |
| 7: |
| br i1 %1, label %8, label %10 |
| |
| 8: |
| %9 = call i32 @bam() |
| br label %12 |
| |
| 10: |
| %11 = call i32 @baz() |
| br label %12 |
| |
| 12: |
| %13 = tail call i32 @qux() |
| ret void |
| } |
| |
| define void @foo16(i1 zeroext %0) nounwind !prof !14 !section_prefix !15 { |
| ;; Check that an unconditional branch is only appended to a block |
| ;; if it would fall through to the wrong block otherwise. |
| ; MFS-O0-LABEL: foo16 |
| ; MFS-O0-X86: jmp |
| ; MFS-O0-X86-NOT: jmp |
| ; MFS-O0-AARCH64: b foo16.cold |
| ; MFS-O0-AARCH64-NOT: b foo16.cold |
| ; MFS-O0: .section .text.split.foo16 |
| ; MFS-O0-NEXT: foo16.cold |
| %2 = call i32 @baz() |
| br i1 false, label %3, label %5, !prof !25 |
| |
| 3: ; preds = %1 |
| %4 = call i32 @bar() |
| unreachable |
| |
| 5: ; preds = %1 |
| %6 = tail call i32 @qux() |
| ret void |
| } |
| |
| define i32 @foo17(i1 zeroext %0, i32 %a, i32 %b) nounwind !prof !14 !section_prefix !15 { |
| ;; Check that cold blocks in functions with red zones aren't split. |
| ; MFS-DEFAULTS-LABEL: foo17 |
| ; MFS-DEFAULTS-X86: foo17.cold: |
| ; MFS-REDZONE-AARCH64-NOT: foo17.cold: |
| %a.addr = alloca i32, align 4 |
| %b.addr = alloca i32, align 4 |
| %x = alloca i32, align 4 |
| |
| br i1 %0, label %2, label %3, !prof !17 |
| |
| 2: ; preds = %1 |
| store i32 %a, ptr %a.addr, align 4 |
| store i32 %b, ptr %b.addr, align 4 |
| br label %4 |
| |
| 3: ; preds = %1 |
| store i32 %a, ptr %b.addr, align 4 |
| store i32 %b, ptr %a.addr, align 4 |
| br label %4 |
| |
| 4: ; preds = %3, %2 |
| %tmp = load i32, ptr %a.addr, align 4 |
| %tmp1 = load i32, ptr %b.addr, align 4 |
| %add = add nsw i32 %tmp, %tmp1 |
| store i32 %add, ptr %x, align 4 |
| %tmp2 = load i32, ptr %x, align 4 |
| ret i32 %tmp2 |
| } |
| |
| define i32 @foo18(i32 %in) !prof !14 !section_prefix !15 { |
| ;; Check that a cold block targeted by a jump table is not split |
| ;; on AArch64. |
| ; MFS-DEFAULTS-LABEL: foo18 |
| ; MFS-DEFAULTS: .section .text.split.foo18 |
| ; MFS-DEFAULTS-NEXT: foo18.cold: |
| ; MFS-DEFAULTS-SAME: %common.ret |
| ; MFS-DEFAULTS-X86-DAG: jmp qux |
| ; MFS-DEFAULTS-X86-DAG: jmp bam |
| ; MFS-DEFAULTS-AARCH64-NOT: b bar |
| ; MFS-DEFAULTS-AARCH64-NOT: b baz |
| ; MFS-DEFAULTS-AARCH64-NOT: b qux |
| ; MFS-DEFAULTS-AARCH64-NOT: b bam |
| |
| switch i32 %in, label %common.ret [ |
| i32 0, label %hot1 |
| i32 1, label %hot2 |
| i32 2, label %cold1 |
| i32 3, label %cold2 |
| ], !prof !28 |
| |
| common.ret: ; preds = %0 |
| ret i32 0 |
| |
| hot1: ; preds = %0 |
| %1 = tail call i32 @bar() |
| ret i32 %1 |
| |
| hot2: ; preds = %0 |
| %2 = tail call i32 @baz() |
| ret i32 %2 |
| |
| cold1: ; preds = %0 |
| %3 = tail call i32 @bam() |
| ret i32 %3 |
| |
| cold2: ; preds = %0 |
| %4 = tail call i32 @qux() |
| ret i32 %4 |
| } |
| |
| define i32 @foo19(i32 %in) !prof !14 !section_prefix !15 { |
| ;; Check that a cold block that contains a jump table dispatch is |
| ;; not split on AArch64. |
| ; MFS-DEFAULTS-LABEL: foo19 |
| ; MFS-DEFAULTS: .section .text.split.foo19 |
| ; MFS-DEFAULTS-NEXT: foo19.cold: |
| ; MFS-DEFAULTS-X86: .LJTI17_0 |
| ; MFS-DEFAULTS-AARCH64-NOT: .LJTI17_0 |
| ; MFS-DEFAULTS: .section .rodata |
| ; MFS-DEFAULTS: .LJTI17_0 |
| %cmp = icmp sgt i32 %in, 3 |
| br i1 %cmp, label %hot, label %cold_switch, !prof !17 |
| |
| hot: ; preds = %0 |
| ret i32 1 |
| |
| cold_switch: ; preds = %0 |
| switch i32 %in, label %common.ret [ |
| i32 0, label %hot1 |
| i32 1, label %hot2 |
| i32 2, label %cold1 |
| i32 3, label %cold2 |
| ], !prof !28 |
| |
| common.ret: ; preds = %0 |
| ret i32 0 |
| |
| hot1: ; preds = %0 |
| %1 = tail call i32 @bar() |
| ret i32 %1 |
| |
| hot2: ; preds = %0 |
| %2 = tail call i32 @baz() |
| ret i32 %2 |
| |
| cold1: ; preds = %0 |
| %3 = tail call i32 @bam() |
| ret i32 %3 |
| |
| cold2: ; preds = %0 |
| %4 = tail call i32 @qux() |
| ret i32 %4 |
| } |
| |
| define void @foo20(i1 zeroext %0) !prof !14 !section_prefix !15 { |
| ;; Check that blocks containing or targeted by asm goto aren't split. |
| ; MFS-DEFAULTS-LABEL: foo20 |
| ; MFS-DEFAULTS-AARCH64-NOT: foo20.cold: |
| ; MFS-DEFAULTS-X86: .section .text.split.foo20 |
| ; MFS-DEFAULTS-X86: foo20.cold: |
| ; MFS-DEFAULTS-X86-DAG: # %cold_asm |
| ; MFS-DEFAULTS-X86-DAG: # %cold_asm_target |
| |
| br i1 %0, label %hot, label %cold_asm, !prof !17 |
| |
| hot: |
| %2 = call i32 @bar() |
| ret void |
| |
| cold_asm: |
| callbr void asm sideeffect "nop", "!i"() #3 |
| to label %asm.fallthrough [label %cold_asm_target] |
| |
| asm.fallthrough: |
| br label %cold_asm_target |
| |
| cold_asm_target: |
| %3 = call i32 @baz() |
| ret void |
| } |
| |
| declare i32 @bar() |
| declare i32 @baz() |
| declare i32 @bam() |
| declare i32 @qux() |
| declare void @_Z1fv() |
| declare i32 @__gxx_personality_v0(...) |
| |
| @_ZTIi = external constant ptr |
| |
| !llvm.module.flags = !{!0} |
| !0 = !{i32 1, !"ProfileSummary", !1} |
| !1 = !{!2, !3, !4, !5, !6, !7, !8, !9} |
| !2 = !{!"ProfileFormat", !"InstrProf"} |
| !3 = !{!"TotalCount", i64 10000} |
| !4 = !{!"MaxCount", i64 10} |
| !5 = !{!"MaxInternalCount", i64 1} |
| !6 = !{!"MaxFunctionCount", i64 1000} |
| !7 = !{!"NumCounts", i64 3} |
| !8 = !{!"NumFunctions", i64 5} |
| !9 = !{!"DetailedSummary", !10} |
| !10 = !{!11, !12, !13} |
| !11 = !{i32 10000, i64 100, i32 1} |
| !12 = !{i32 999900, i64 100, i32 1} |
| !13 = !{i32 999999, i64 1, i32 2} |
| !14 = !{!"function_entry_count", i64 7000} |
| !15 = !{!"function_section_prefix", !"hot"} |
| !16 = !{!"function_section_prefix", !"unlikely"} |
| !17 = !{!"branch_weights", i32 7000, i32 0} |
| !18 = !{!"branch_weights", i32 3000, i32 4000} |
| !19 = !{!"branch_weights", i32 1000, i32 6000} |
| !20 = !{!"function_entry_count", i64 10000} |
| !21 = !{!"branch_weights", i32 6000, i32 4000} |
| !22 = !{!"branch_weights", i32 80, i32 9920} |
| !23 = !{!"function_entry_count", i64 7} |
| !24 = !{!"function_entry_count", i64 10000} |
| !25 = !{!"branch_weights", i32 0, i32 7000} |
| !26 = !{!"branch_weights", i32 1000, i32 6000} |
| !27 = !{!"function_entry_count", i64 10000} |
| !28 = !{!"branch_weights", i32 0, i32 4000, i32 4000, i32 0, i32 0} |
