| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py |
| ; RUN: llc < %s -mtriple=i686-linux -show-mc-encoding | FileCheck %s --check-prefix=CHECK32 |
| ; RUN: llc < %s -mtriple=x86_64-linux -show-mc-encoding | FileCheck %s --check-prefix=CHECK64 |
| ; RUN: llc < %s -mtriple=x86_64-win32 -show-mc-encoding | FileCheck %s --check-prefix=WIN64 |
| |
| declare void @foo() |
| declare void @bar() |
| |
| define void @f(i32 %x, i32 %y) !prof !14 { |
| ; CHECK32-LABEL: f: |
| ; CHECK32: # %bb.0: # %entry |
| ; CHECK32-NEXT: movl {{[0-9]+}}(%esp), %eax # encoding: [0x8b,0x44,0x24,0x04] |
| ; CHECK32-NEXT: cmpl {{[0-9]+}}(%esp), %eax # encoding: [0x3b,0x44,0x24,0x08] |
| ; CHECK32-NEXT: jne bar@PLT # TAILCALL |
| ; CHECK32-NEXT: # encoding: [0x75,A] |
| ; CHECK32-NEXT: # fixup A - offset: 1, value: bar@PLT-1, kind: FK_PCRel_1 |
| ; CHECK32-NEXT: # %bb.1: # %bb1 |
| ; CHECK32-NEXT: jmp foo@PLT # TAILCALL |
| ; CHECK32-NEXT: # encoding: [0xeb,A] |
| ; CHECK32-NEXT: # fixup A - offset: 1, value: foo@PLT-1, kind: FK_PCRel_1 |
| ; |
| ; CHECK64-LABEL: f: |
| ; CHECK64: # %bb.0: # %entry |
| ; CHECK64-NEXT: cmpl %esi, %edi # encoding: [0x39,0xf7] |
| ; CHECK64-NEXT: jne bar@PLT # TAILCALL |
| ; CHECK64-NEXT: # encoding: [0x75,A] |
| ; CHECK64-NEXT: # fixup A - offset: 1, value: bar@PLT-1, kind: FK_PCRel_1 |
| ; CHECK64-NEXT: # %bb.1: # %bb1 |
| ; CHECK64-NEXT: jmp foo@PLT # TAILCALL |
| ; CHECK64-NEXT: # encoding: [0xeb,A] |
| ; CHECK64-NEXT: # fixup A - offset: 1, value: foo@PLT-1, kind: FK_PCRel_1 |
| ; |
| ; WIN64-LABEL: f: |
| ; WIN64: # %bb.0: # %entry |
| ; WIN64-NEXT: cmpl %edx, %ecx # encoding: [0x39,0xd1] |
| ; WIN64-NEXT: jne bar # TAILCALL |
| ; WIN64-NEXT: # encoding: [0x75,A] |
| ; WIN64-NEXT: # fixup A - offset: 1, value: bar-1, kind: FK_PCRel_1 |
| ; WIN64-NEXT: # %bb.1: # %bb1 |
| ; WIN64-NEXT: jmp foo # TAILCALL |
| ; WIN64-NEXT: # encoding: [0xeb,A] |
| ; WIN64-NEXT: # fixup A - offset: 1, value: foo-1, kind: FK_PCRel_1 |
| entry: |
| %p = icmp eq i32 %x, %y |
| br i1 %p, label %bb1, label %bb2 |
| bb1: |
| tail call void @foo() |
| ret void |
| bb2: |
| tail call void @bar() |
| ret void |
| |
| ; Check that the asm doesn't just look good, but uses the correct encoding. |
| } |
| |
| define void @f_non_leaf(i32 %x, i32 %y) !prof !14 { |
| ; CHECK32-LABEL: f_non_leaf: |
| ; CHECK32: # %bb.0: # %entry |
| ; CHECK32-NEXT: pushl %ebx # encoding: [0x53] |
| ; CHECK32-NEXT: .cfi_def_cfa_offset 8 |
| ; CHECK32-NEXT: .cfi_offset %ebx, -8 |
| ; CHECK32-NEXT: movl {{[0-9]+}}(%esp), %eax # encoding: [0x8b,0x44,0x24,0x08] |
| ; CHECK32-NEXT: #APP |
| ; CHECK32-NEXT: #NO_APP |
| ; CHECK32-NEXT: cmpl {{[0-9]+}}(%esp), %eax # encoding: [0x3b,0x44,0x24,0x0c] |
| ; CHECK32-NEXT: jne .LBB1_2 # encoding: [0x75,A] |
| ; CHECK32-NEXT: # fixup A - offset: 1, value: .LBB1_2-1, kind: FK_PCRel_1 |
| ; CHECK32-NEXT: # %bb.1: # %bb1 |
| ; CHECK32-NEXT: popl %ebx # encoding: [0x5b] |
| ; CHECK32-NEXT: .cfi_def_cfa_offset 4 |
| ; CHECK32-NEXT: jmp foo@PLT # TAILCALL |
| ; CHECK32-NEXT: # encoding: [0xeb,A] |
| ; CHECK32-NEXT: # fixup A - offset: 1, value: foo@PLT-1, kind: FK_PCRel_1 |
| ; CHECK32-NEXT: .LBB1_2: # %bb2 |
| ; CHECK32-NEXT: .cfi_def_cfa_offset 8 |
| ; CHECK32-NEXT: popl %ebx # encoding: [0x5b] |
| ; CHECK32-NEXT: .cfi_def_cfa_offset 4 |
| ; CHECK32-NEXT: jmp bar@PLT # TAILCALL |
| ; CHECK32-NEXT: # encoding: [0xeb,A] |
| ; CHECK32-NEXT: # fixup A - offset: 1, value: bar@PLT-1, kind: FK_PCRel_1 |
| ; |
| ; CHECK64-LABEL: f_non_leaf: |
| ; CHECK64: # %bb.0: # %entry |
| ; CHECK64-NEXT: pushq %rbx # encoding: [0x53] |
| ; CHECK64-NEXT: .cfi_def_cfa_offset 16 |
| ; CHECK64-NEXT: .cfi_offset %rbx, -16 |
| ; CHECK64-NEXT: #APP |
| ; CHECK64-NEXT: #NO_APP |
| ; CHECK64-NEXT: cmpl %esi, %edi # encoding: [0x39,0xf7] |
| ; CHECK64-NEXT: jne .LBB1_2 # encoding: [0x75,A] |
| ; CHECK64-NEXT: # fixup A - offset: 1, value: .LBB1_2-1, kind: FK_PCRel_1 |
| ; CHECK64-NEXT: # %bb.1: # %bb1 |
| ; CHECK64-NEXT: popq %rbx # encoding: [0x5b] |
| ; CHECK64-NEXT: .cfi_def_cfa_offset 8 |
| ; CHECK64-NEXT: jmp foo@PLT # TAILCALL |
| ; CHECK64-NEXT: # encoding: [0xeb,A] |
| ; CHECK64-NEXT: # fixup A - offset: 1, value: foo@PLT-1, kind: FK_PCRel_1 |
| ; CHECK64-NEXT: .LBB1_2: # %bb2 |
| ; CHECK64-NEXT: .cfi_def_cfa_offset 16 |
| ; CHECK64-NEXT: popq %rbx # encoding: [0x5b] |
| ; CHECK64-NEXT: .cfi_def_cfa_offset 8 |
| ; CHECK64-NEXT: jmp bar@PLT # TAILCALL |
| ; CHECK64-NEXT: # encoding: [0xeb,A] |
| ; CHECK64-NEXT: # fixup A - offset: 1, value: bar@PLT-1, kind: FK_PCRel_1 |
| ; |
| ; WIN64-LABEL: f_non_leaf: |
| ; WIN64: # %bb.0: # %entry |
| ; WIN64-NEXT: pushq %rbx # encoding: [0x53] |
| ; WIN64-NEXT: .seh_pushreg %rbx |
| ; WIN64-NEXT: .seh_endprologue |
| ; WIN64-NEXT: #APP |
| ; WIN64-NEXT: #NO_APP |
| ; WIN64-NEXT: cmpl %edx, %ecx # encoding: [0x39,0xd1] |
| ; WIN64-NEXT: jne .LBB1_2 # encoding: [0x75,A] |
| ; WIN64-NEXT: # fixup A - offset: 1, value: .LBB1_2-1, kind: FK_PCRel_1 |
| ; WIN64-NEXT: # %bb.1: # %bb1 |
| ; WIN64-NEXT: popq %rbx # encoding: [0x5b] |
| ; WIN64-NEXT: jmp foo # TAILCALL |
| ; WIN64-NEXT: # encoding: [0xeb,A] |
| ; WIN64-NEXT: # fixup A - offset: 1, value: foo-1, kind: FK_PCRel_1 |
| ; WIN64-NEXT: .LBB1_2: # %bb2 |
| ; WIN64-NEXT: nop # encoding: [0x90] |
| ; WIN64-NEXT: popq %rbx # encoding: [0x5b] |
| ; WIN64-NEXT: jmp bar # TAILCALL |
| ; WIN64-NEXT: # encoding: [0xeb,A] |
| ; WIN64-NEXT: # fixup A - offset: 1, value: bar-1, kind: FK_PCRel_1 |
| ; WIN64-NEXT: .seh_endproc |
| entry: |
| ; Force %ebx to be spilled on the stack, turning this into |
| ; not a "leaf" function for Win64. |
| tail call void asm sideeffect "", "~{ebx}"() |
| |
| %p = icmp eq i32 %x, %y |
| br i1 %p, label %bb1, label %bb2 |
| bb1: |
| tail call void @foo() |
| ret void |
| bb2: |
| tail call void @bar() |
| ret void |
| |
| } |
| |
| declare x86_thiscallcc zeroext i1 @baz(i8*, i32) |
| define x86_thiscallcc zeroext i1 @BlockPlacementTest(i8* %this, i32 %x) !prof !14 { |
| ; CHECK32-LABEL: BlockPlacementTest: |
| ; CHECK32: # %bb.0: # %entry |
| ; CHECK32-NEXT: movl {{[0-9]+}}(%esp), %edx # encoding: [0x8b,0x54,0x24,0x04] |
| ; CHECK32-NEXT: testb $42, %dl # encoding: [0xf6,0xc2,0x2a] |
| ; CHECK32-NEXT: je .LBB2_3 # encoding: [0x74,A] |
| ; CHECK32-NEXT: # fixup A - offset: 1, value: .LBB2_3-1, kind: FK_PCRel_1 |
| ; CHECK32-NEXT: # %bb.1: # %land.rhs |
| ; CHECK32-NEXT: movb $1, %al # encoding: [0xb0,0x01] |
| ; CHECK32-NEXT: testb $44, %dl # encoding: [0xf6,0xc2,0x2c] |
| ; CHECK32-NEXT: je baz@PLT # TAILCALL |
| ; CHECK32-NEXT: # encoding: [0x74,A] |
| ; CHECK32-NEXT: # fixup A - offset: 1, value: baz@PLT-1, kind: FK_PCRel_1 |
| ; CHECK32-NEXT: .LBB2_2: # %land.end |
| ; CHECK32-NEXT: # kill: def $al killed $al killed $eax |
| ; CHECK32-NEXT: retl $4 # encoding: [0xc2,0x04,0x00] |
| ; CHECK32-NEXT: .LBB2_3: |
| ; CHECK32-NEXT: xorl %eax, %eax # encoding: [0x31,0xc0] |
| ; CHECK32-NEXT: jmp .LBB2_2 # encoding: [0xeb,A] |
| ; CHECK32-NEXT: # fixup A - offset: 1, value: .LBB2_2-1, kind: FK_PCRel_1 |
| ; |
| ; CHECK64-LABEL: BlockPlacementTest: |
| ; CHECK64: # %bb.0: # %entry |
| ; CHECK64-NEXT: testb $42, %sil # encoding: [0x40,0xf6,0xc6,0x2a] |
| ; CHECK64-NEXT: je .LBB2_3 # encoding: [0x74,A] |
| ; CHECK64-NEXT: # fixup A - offset: 1, value: .LBB2_3-1, kind: FK_PCRel_1 |
| ; CHECK64-NEXT: # %bb.1: # %land.rhs |
| ; CHECK64-NEXT: movb $1, %al # encoding: [0xb0,0x01] |
| ; CHECK64-NEXT: testb $44, %sil # encoding: [0x40,0xf6,0xc6,0x2c] |
| ; CHECK64-NEXT: je baz@PLT # TAILCALL |
| ; CHECK64-NEXT: # encoding: [0x74,A] |
| ; CHECK64-NEXT: # fixup A - offset: 1, value: baz@PLT-1, kind: FK_PCRel_1 |
| ; CHECK64-NEXT: .LBB2_2: # %land.end |
| ; CHECK64-NEXT: # kill: def $al killed $al killed $eax |
| ; CHECK64-NEXT: retq # encoding: [0xc3] |
| ; CHECK64-NEXT: .LBB2_3: |
| ; CHECK64-NEXT: xorl %eax, %eax # encoding: [0x31,0xc0] |
| ; CHECK64-NEXT: jmp .LBB2_2 # encoding: [0xeb,A] |
| ; CHECK64-NEXT: # fixup A - offset: 1, value: .LBB2_2-1, kind: FK_PCRel_1 |
| ; |
| ; WIN64-LABEL: BlockPlacementTest: |
| ; WIN64: # %bb.0: # %entry |
| ; WIN64-NEXT: testb $42, %dl # encoding: [0xf6,0xc2,0x2a] |
| ; WIN64-NEXT: je .LBB2_3 # encoding: [0x74,A] |
| ; WIN64-NEXT: # fixup A - offset: 1, value: .LBB2_3-1, kind: FK_PCRel_1 |
| ; WIN64-NEXT: # %bb.1: # %land.rhs |
| ; WIN64-NEXT: movb $1, %al # encoding: [0xb0,0x01] |
| ; WIN64-NEXT: testb $44, %dl # encoding: [0xf6,0xc2,0x2c] |
| ; WIN64-NEXT: je baz # TAILCALL |
| ; WIN64-NEXT: # encoding: [0x74,A] |
| ; WIN64-NEXT: # fixup A - offset: 1, value: baz-1, kind: FK_PCRel_1 |
| ; WIN64-NEXT: .LBB2_2: # %land.end |
| ; WIN64-NEXT: # kill: def $al killed $al killed $eax |
| ; WIN64-NEXT: retq # encoding: [0xc3] |
| ; WIN64-NEXT: .LBB2_3: |
| ; WIN64-NEXT: xorl %eax, %eax # encoding: [0x31,0xc0] |
| ; WIN64-NEXT: jmp .LBB2_2 # encoding: [0xeb,A] |
| ; WIN64-NEXT: # fixup A - offset: 1, value: .LBB2_2-1, kind: FK_PCRel_1 |
| entry: |
| %and = and i32 %x, 42 |
| %tobool = icmp eq i32 %and, 0 |
| br i1 %tobool, label %land.end, label %land.rhs |
| |
| land.rhs: |
| %and6 = and i32 %x, 44 |
| %tobool7 = icmp eq i32 %and6, 0 |
| br i1 %tobool7, label %lor.rhs, label %land.end |
| |
| lor.rhs: |
| %call = tail call x86_thiscallcc zeroext i1 @baz(i8* %this, i32 %x) #2 |
| br label %land.end |
| |
| land.end: |
| %0 = phi i1 [ false, %entry ], [ true, %land.rhs ], [ %call, %lor.rhs ] |
| ret i1 %0 |
| |
| ; Make sure machine block placement isn't confused by the conditional tail call, |
| ; but sees that it can fall through to the next block. |
| } |
| |
| !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 3} |
| !9 = !{!"DetailedSummary", !10} |
| !10 = !{!11, !12, !13} |
| !11 = !{i32 10000, i64 100, i32 1} |
| !12 = !{i32 999000, i64 100, i32 1} |
| !13 = !{i32 999999, i64 1, i32 2} |
| !14 = !{!"function_entry_count", i64 0} |