diff options
Diffstat (limited to 'llvm/test/CodeGen/X86/conditional-tailcall-pgso.ll')
| -rw-r--r-- | llvm/test/CodeGen/X86/conditional-tailcall-pgso.ll | 242 |
1 files changed, 242 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/X86/conditional-tailcall-pgso.ll b/llvm/test/CodeGen/X86/conditional-tailcall-pgso.ll new file mode 100644 index 00000000000..65bd1dad21a --- /dev/null +++ b/llvm/test/CodeGen/X86/conditional-tailcall-pgso.ll @@ -0,0 +1,242 @@ +; 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=CHECK --check-prefix=CHECK32 +; RUN: llc < %s -mtriple=x86_64-linux -show-mc-encoding | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK64 +; RUN: llc < %s -mtriple=x86_64-win32 -show-mc-encoding | FileCheck %s --check-prefix=CHECK --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 # TAILCALL +; CHECK32-NEXT: # encoding: [0x75,A] +; CHECK32-NEXT: # fixup A - offset: 1, value: bar-1, kind: FK_PCRel_1 +; CHECK32-NEXT: # %bb.1: # %bb1 +; CHECK32-NEXT: jmp foo # TAILCALL +; CHECK32-NEXT: # encoding: [0xeb,A] +; CHECK32-NEXT: # fixup A - offset: 1, value: foo-1, kind: FK_PCRel_1 +; +; CHECK64-LABEL: f: +; CHECK64: # %bb.0: # %entry +; CHECK64-NEXT: cmpl %esi, %edi # encoding: [0x39,0xf7] +; CHECK64-NEXT: jne bar # TAILCALL +; CHECK64-NEXT: # encoding: [0x75,A] +; CHECK64-NEXT: # fixup A - offset: 1, value: bar-1, kind: FK_PCRel_1 +; CHECK64-NEXT: # %bb.1: # %bb1 +; CHECK64-NEXT: jmp foo # TAILCALL +; CHECK64-NEXT: # encoding: [0xeb,A] +; CHECK64-NEXT: # fixup A - offset: 1, value: foo-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 # TAILCALL +; CHECK32-NEXT: # encoding: [0xeb,A] +; CHECK32-NEXT: # fixup A - offset: 1, value: foo-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 # TAILCALL +; CHECK32-NEXT: # encoding: [0xeb,A] +; CHECK32-NEXT: # fixup A - offset: 1, value: bar-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 # TAILCALL +; CHECK64-NEXT: # encoding: [0xeb,A] +; CHECK64-NEXT: # fixup A - offset: 1, value: foo-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 # TAILCALL +; CHECK64-NEXT: # encoding: [0xeb,A] +; CHECK64-NEXT: # fixup A - offset: 1, value: bar-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_handlerdata +; WIN64-NEXT: .text +; 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 # TAILCALL +; CHECK32-NEXT: # encoding: [0x74,A] +; CHECK32-NEXT: # fixup A - offset: 1, value: baz-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 # TAILCALL +; CHECK64-NEXT: # encoding: [0x74,A] +; CHECK64-NEXT: # fixup A - offset: 1, value: baz-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} |
