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llvm-mirror/test/CodeGen/X86/anyregcc.ll
Philip Reames 863d1f370d [peephole] Enhance folding logic to work for STATEPOINTs 
The general idea here is to get enough of the existing restrictions out of the way that the already existing folding logic in foldMemoryOperand can kick in for STATEPOINTs and fold references to immutable stack slots. The key changes are:

    Support for folding multiple operands at once which reference the same load
    Support for folding multiple loads into a single instruction
    Walk all the operands of the instruction for varidic instructions (this is a bug fix!)

Once this lands, I'll post another patch which refactors the TII interface here. There's nothing actually x86 specific about the x86 code used here.

Differential Revision: https://reviews.llvm.org/D24103

llvm-svn: 289510
2016-12-13 01:38:41 +00:00

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; RUN: llc < %s -mtriple=x86_64-apple-darwin -disable-fp-elim | FileCheck %s
; RUN: llc < %s -mtriple=x86_64-apple-darwin -mcpu=corei7 -disable-fp-elim | FileCheck --check-prefix=SSE %s
; RUN: llc < %s -mtriple=x86_64-apple-darwin -mcpu=corei7-avx -disable-fp-elim | FileCheck --check-prefix=AVX %s
; Stackmap Header: no constants - 6 callsites
; CHECK-LABEL: .section __LLVM_STACKMAPS,__llvm_stackmaps
; CHECK-NEXT: __LLVM_StackMaps:
; Header
; CHECK-NEXT: .byte 2
; CHECK-NEXT: .byte 0
; CHECK-NEXT: .short 0
; Num Functions
; CHECK-NEXT: .long 8
; Num Constants
; CHECK-NEXT: .long 0
; Num Callsites
; CHECK-NEXT: .long 8
; Functions and stack size
; CHECK-NEXT: .quad _test
; CHECK-NEXT: .quad 8
; CHECK-NEXT: .quad 1
; CHECK-NEXT: .quad _property_access1
; CHECK-NEXT: .quad 8
; CHECK-NEXT: .quad 1
; CHECK-NEXT: .quad _property_access2
; CHECK-NEXT: .quad 24
; CHECK-NEXT: .quad 1
; CHECK-NEXT: .quad _property_access3
; CHECK-NEXT: .quad 24
; CHECK-NEXT: .quad 1
; CHECK-NEXT: .quad _anyreg_test1
; CHECK-NEXT: .quad 56
; CHECK-NEXT: .quad 1
; CHECK-NEXT: .quad _anyreg_test2
; CHECK-NEXT: .quad 8
; CHECK-NEXT: .quad 1
; CHECK-NEXT: .quad _patchpoint_spilldef
; CHECK-NEXT: .quad 56
; CHECK-NEXT: .quad 1
; CHECK-NEXT: .quad _patchpoint_spillargs
; CHECK-NEXT: .quad 88
; CHECK-NEXT: .quad 1
; No constants
; Callsites
; test
; CHECK-LABEL: .long L{{.*}}-_test
; CHECK-NEXT: .short 0
; 3 locations
; CHECK-NEXT: .short 3
; Loc 0: Register
; CHECK-NEXT: .byte 1
; CHECK-NEXT: .byte 4
; CHECK-NEXT: .short {{[0-9]+}}
; CHECK-NEXT: .long 0
; Loc 1: Register
; CHECK-NEXT: .byte 1
; CHECK-NEXT: .byte 4
; CHECK-NEXT: .short {{[0-9]+}}
; CHECK-NEXT: .long 0
; Loc 2: Constant 3
; CHECK-NEXT: .byte 4
; CHECK-NEXT: .byte 8
; CHECK-NEXT: .short 0
; CHECK-NEXT: .long 3
define i64 @test() nounwind ssp uwtable {
entry:
call anyregcc void (i64, i32, i8*, i32, ...) @llvm.experimental.patchpoint.void(i64 0, i32 15, i8* null, i32 2, i32 1, i32 2, i64 3)
ret i64 0
}
; property access 1 - %obj is an anyreg call argument and should therefore be in a register
; CHECK-LABEL: .long L{{.*}}-_property_access1
; CHECK-NEXT: .short 0
; 2 locations
; CHECK-NEXT: .short 2
; Loc 0: Register <-- this is the return register
; CHECK-NEXT: .byte 1
; CHECK-NEXT: .byte 8
; CHECK-NEXT: .short {{[0-9]+}}
; CHECK-NEXT: .long 0
; Loc 1: Register
; CHECK-NEXT: .byte 1
; CHECK-NEXT: .byte 8
; CHECK-NEXT: .short {{[0-9]+}}
; CHECK-NEXT: .long 0
define i64 @property_access1(i8* %obj) nounwind ssp uwtable {
entry:
%f = inttoptr i64 12297829382473034410 to i8*
%ret = call anyregcc i64 (i64, i32, i8*, i32, ...) @llvm.experimental.patchpoint.i64(i64 1, i32 15, i8* %f, i32 1, i8* %obj)
ret i64 %ret
}
; property access 2 - %obj is an anyreg call argument and should therefore be in a register
; CHECK-LABEL: .long L{{.*}}-_property_access2
; CHECK-NEXT: .short 0
; 2 locations
; CHECK-NEXT: .short 2
; Loc 0: Register <-- this is the return register
; CHECK-NEXT: .byte 1
; CHECK-NEXT: .byte 8
; CHECK-NEXT: .short {{[0-9]+}}
; CHECK-NEXT: .long 0
; Loc 1: Register
; CHECK-NEXT: .byte 1
; CHECK-NEXT: .byte 8
; CHECK-NEXT: .short {{[0-9]+}}
; CHECK-NEXT: .long 0
define i64 @property_access2() nounwind ssp uwtable {
entry:
%obj = alloca i64, align 8
%f = inttoptr i64 12297829382473034410 to i8*
%ret = call anyregcc i64 (i64, i32, i8*, i32, ...) @llvm.experimental.patchpoint.i64(i64 2, i32 15, i8* %f, i32 1, i64* %obj)
ret i64 %ret
}
; property access 3 - %obj is a frame index
; CHECK-LABEL: .long L{{.*}}-_property_access3
; CHECK-NEXT: .short 0
; 2 locations
; CHECK-NEXT: .short 2
; Loc 0: Register <-- this is the return register
; CHECK-NEXT: .byte 1
; CHECK-NEXT: .byte 8
; CHECK-NEXT: .short {{[0-9]+}}
; CHECK-NEXT: .long 0
; Loc 1: Direct RBP - ofs
; CHECK-NEXT: .byte 2
; CHECK-NEXT: .byte 8
; CHECK-NEXT: .short 6
; CHECK-NEXT: .long
define i64 @property_access3() nounwind ssp uwtable {
entry:
%obj = alloca i64, align 8
%f = inttoptr i64 12297829382473034410 to i8*
%ret = call anyregcc i64 (i64, i32, i8*, i32, ...) @llvm.experimental.patchpoint.i64(i64 3, i32 15, i8* %f, i32 0, i64* %obj)
ret i64 %ret
}
; anyreg_test1
; CHECK-LABEL: .long L{{.*}}-_anyreg_test1
; CHECK-NEXT: .short 0
; 14 locations
; CHECK-NEXT: .short 14
; Loc 0: Register <-- this is the return register
; CHECK-NEXT: .byte 1
; CHECK-NEXT: .byte 8
; CHECK-NEXT: .short {{[0-9]+}}
; CHECK-NEXT: .long 0
; Loc 1: Register
; CHECK-NEXT: .byte 1
; CHECK-NEXT: .byte 8
; CHECK-NEXT: .short {{[0-9]+}}
; CHECK-NEXT: .long 0
; Loc 2: Register
; CHECK-NEXT: .byte 1
; CHECK-NEXT: .byte 8
; CHECK-NEXT: .short {{[0-9]+}}
; CHECK-NEXT: .long 0
; Loc 3: Register
; CHECK-NEXT: .byte 1
; CHECK-NEXT: .byte 8
; CHECK-NEXT: .short {{[0-9]+}}
; CHECK-NEXT: .long 0
; Loc 4: Register
; CHECK-NEXT: .byte 1
; CHECK-NEXT: .byte 8
; CHECK-NEXT: .short {{[0-9]+}}
; CHECK-NEXT: .long 0
; Loc 5: Register
; CHECK-NEXT: .byte 1
; CHECK-NEXT: .byte 8
; CHECK-NEXT: .short {{[0-9]+}}
; CHECK-NEXT: .long 0
; Loc 6: Register
; CHECK-NEXT: .byte 1
; CHECK-NEXT: .byte 8
; CHECK-NEXT: .short {{[0-9]+}}
; CHECK-NEXT: .long 0
; Loc 7: Register
; CHECK-NEXT: .byte 1
; CHECK-NEXT: .byte 8
; CHECK-NEXT: .short {{[0-9]+}}
; CHECK-NEXT: .long 0
; Loc 8: Register
; CHECK-NEXT: .byte 1
; CHECK-NEXT: .byte 8
; CHECK-NEXT: .short {{[0-9]+}}
; CHECK-NEXT: .long 0
; Loc 9: Register
; CHECK-NEXT: .byte 1
; CHECK-NEXT: .byte 8
; CHECK-NEXT: .short {{[0-9]+}}
; CHECK-NEXT: .long 0
; Loc 10: Register
; CHECK-NEXT: .byte 1
; CHECK-NEXT: .byte 8
; CHECK-NEXT: .short {{[0-9]+}}
; CHECK-NEXT: .long 0
; Loc 11: Register
; CHECK-NEXT: .byte 1
; CHECK-NEXT: .byte 8
; CHECK-NEXT: .short {{[0-9]+}}
; CHECK-NEXT: .long 0
; Loc 12: Register
; CHECK-NEXT: .byte 1
; CHECK-NEXT: .byte 8
; CHECK-NEXT: .short {{[0-9]+}}
; CHECK-NEXT: .long 0
; Loc 13: Register
; CHECK-NEXT: .byte 1
; CHECK-NEXT: .byte 8
; CHECK-NEXT: .short {{[0-9]+}}
; CHECK-NEXT: .long 0
define i64 @anyreg_test1(i8* %a1, i8* %a2, i8* %a3, i8* %a4, i8* %a5, i8* %a6, i8* %a7, i8* %a8, i8* %a9, i8* %a10, i8* %a11, i8* %a12, i8* %a13) nounwind ssp uwtable {
entry:
%f = inttoptr i64 12297829382473034410 to i8*
%ret = call anyregcc i64 (i64, i32, i8*, i32, ...) @llvm.experimental.patchpoint.i64(i64 4, i32 15, i8* %f, i32 13, i8* %a1, i8* %a2, i8* %a3, i8* %a4, i8* %a5, i8* %a6, i8* %a7, i8* %a8, i8* %a9, i8* %a10, i8* %a11, i8* %a12, i8* %a13)
ret i64 %ret
}
; anyreg_test2
; CHECK-LABEL: .long L{{.*}}-_anyreg_test2
; CHECK-NEXT: .short 0
; 14 locations
; CHECK-NEXT: .short 14
; Loc 0: Register <-- this is the return register
; CHECK-NEXT: .byte 1
; CHECK-NEXT: .byte 8
; CHECK-NEXT: .short {{[0-9]+}}
; CHECK-NEXT: .long 0
; Loc 1: Register
; CHECK-NEXT: .byte 1
; CHECK-NEXT: .byte 8
; CHECK-NEXT: .short {{[0-9]+}}
; CHECK-NEXT: .long 0
; Loc 2: Register
; CHECK-NEXT: .byte 1
; CHECK-NEXT: .byte 8
; CHECK-NEXT: .short {{[0-9]+}}
; CHECK-NEXT: .long 0
; Loc 3: Register
; CHECK-NEXT: .byte 1
; CHECK-NEXT: .byte 8
; CHECK-NEXT: .short {{[0-9]+}}
; CHECK-NEXT: .long 0
; Loc 4: Register
; CHECK-NEXT: .byte 1
; CHECK-NEXT: .byte 8
; CHECK-NEXT: .short {{[0-9]+}}
; CHECK-NEXT: .long 0
; Loc 5: Register
; CHECK-NEXT: .byte 1
; CHECK-NEXT: .byte 8
; CHECK-NEXT: .short {{[0-9]+}}
; CHECK-NEXT: .long 0
; Loc 6: Register
; CHECK-NEXT: .byte 1
; CHECK-NEXT: .byte 8
; CHECK-NEXT: .short {{[0-9]+}}
; CHECK-NEXT: .long 0
; Loc 7: Register
; CHECK-NEXT: .byte 1
; CHECK-NEXT: .byte 8
; CHECK-NEXT: .short {{[0-9]+}}
; CHECK-NEXT: .long 0
; Loc 8: Register
; CHECK-NEXT: .byte 1
; CHECK-NEXT: .byte 8
; CHECK-NEXT: .short {{[0-9]+}}
; CHECK-NEXT: .long 0
; Loc 9: Argument, still on stack
; CHECK-NEXT: .byte 3
; CHECK-NEXT: .byte 8
; CHECK-NEXT: .short 6
; CHECK-NEXT: .long
; Loc 10: Argument, still on stack
; CHECK-NEXT: .byte 3
; CHECK-NEXT: .byte 8
; CHECK-NEXT: .short 6
; CHECK-NEXT: .long
; Loc 11: Argument, still on stack
; CHECK-NEXT: .byte 3
; CHECK-NEXT: .byte 8
; CHECK-NEXT: .short 6
; CHECK-NEXT: .long
; Loc 12: Argument, still on stack
; CHECK-NEXT: .byte 3
; CHECK-NEXT: .byte 8
; CHECK-NEXT: .short 6
; CHECK-NEXT: .long
; Loc 13: Argument, still on stack
; CHECK-NEXT: .byte 3
; CHECK-NEXT: .byte 8
; CHECK-NEXT: .short 6
; CHECK-NEXT: .long
define i64 @anyreg_test2(i8* %a1, i8* %a2, i8* %a3, i8* %a4, i8* %a5, i8* %a6, i8* %a7, i8* %a8, i8* %a9, i8* %a10, i8* %a11, i8* %a12, i8* %a13) nounwind ssp uwtable {
entry:
%f = inttoptr i64 12297829382473034410 to i8*
%ret = call anyregcc i64 (i64, i32, i8*, i32, ...) @llvm.experimental.patchpoint.i64(i64 5, i32 15, i8* %f, i32 8, i8* %a1, i8* %a2, i8* %a3, i8* %a4, i8* %a5, i8* %a6, i8* %a7, i8* %a8, i8* %a9, i8* %a10, i8* %a11, i8* %a12, i8* %a13)
ret i64 %ret
}
; Test spilling the return value of an anyregcc call.
;
; <rdar://problem/15432754> [JS] Assertion: "Folded a def to a non-store!"
;
; CHECK-LABEL: .long L{{.*}}-_patchpoint_spilldef
; CHECK-NEXT: .short 0
; CHECK-NEXT: .short 3
; Loc 0: Register (some register that will be spilled to the stack)
; CHECK-NEXT: .byte 1
; CHECK-NEXT: .byte 8
; CHECK-NEXT: .short {{[0-9]+}}
; CHECK-NEXT: .long 0
; Loc 1: Register RDI
; CHECK-NEXT: .byte 1
; CHECK-NEXT: .byte 8
; CHECK-NEXT: .short 5
; CHECK-NEXT: .long 0
; Loc 1: Register RSI
; CHECK-NEXT: .byte 1
; CHECK-NEXT: .byte 8
; CHECK-NEXT: .short 4
; CHECK-NEXT: .long 0
define i64 @patchpoint_spilldef(i64 %p1, i64 %p2, i64 %p3, i64 %p4) {
entry:
%result = tail call anyregcc i64 (i64, i32, i8*, i32, ...) @llvm.experimental.patchpoint.i64(i64 12, i32 15, i8* inttoptr (i64 0 to i8*), i32 2, i64 %p1, i64 %p2)
tail call void asm sideeffect "nop", "~{ax},~{bx},~{cx},~{dx},~{bp},~{si},~{di},~{r8},~{r9},~{r10},~{r11},~{r12},~{r13},~{r14},~{r15}"() nounwind
ret i64 %result
}
; Test spilling the arguments of an anyregcc call.
;
; <rdar://problem/15487687> [JS] AnyRegCC argument ends up being spilled
;
; CHECK-LABEL: .long L{{.*}}-_patchpoint_spillargs
; CHECK-NEXT: .short 0
; CHECK-NEXT: .short 5
; Loc 0: Return a register
; CHECK-NEXT: .byte 1
; CHECK-NEXT: .byte 8
; CHECK-NEXT: .short {{[0-9]+}}
; CHECK-NEXT: .long 0
; Loc 1: Arg0 in a Register
; CHECK-NEXT: .byte 1
; CHECK-NEXT: .byte 8
; CHECK-NEXT: .short {{[0-9]+}}
; CHECK-NEXT: .long 0
; Loc 2: Arg1 in a Register
; CHECK-NEXT: .byte 1
; CHECK-NEXT: .byte 8
; CHECK-NEXT: .short {{[0-9]+}}
; CHECK-NEXT: .long 0
; Loc 3: Arg2 spilled to RBP +
; CHECK-NEXT: .byte 3
; CHECK-NEXT: .byte 8
; CHECK-NEXT: .short 6
; CHECK-NEXT: .long
; Loc 4: Arg3 spilled to RBP +
; CHECK-NEXT: .byte 3
; CHECK-NEXT: .byte 8
; CHECK-NEXT: .short 6
; CHECK-NEXT: .long
define i64 @patchpoint_spillargs(i64 %p1, i64 %p2, i64 %p3, i64 %p4) {
entry:
tail call void asm sideeffect "nop", "~{ax},~{bx},~{cx},~{dx},~{bp},~{si},~{di},~{r8},~{r9},~{r10},~{r11},~{r12},~{r13},~{r14},~{r15}"() nounwind
%result = tail call anyregcc i64 (i64, i32, i8*, i32, ...) @llvm.experimental.patchpoint.i64(i64 13, i32 15, i8* inttoptr (i64 0 to i8*), i32 2, i64 %p1, i64 %p2, i64 %p3, i64 %p4)
ret i64 %result
}
; Make sure all regs are spilled
define anyregcc void @anyregcc1() {
entry:
;SSE-LABEL: anyregcc1
;SSE: pushq %rbp
;SSE: pushq %rax
;SSE: pushq %r15
;SSE: pushq %r14
;SSE: pushq %r13
;SSE: pushq %r12
;SSE: pushq %r11
;SSE: pushq %r10
;SSE: pushq %r9
;SSE: pushq %r8
;SSE: pushq %rdi
;SSE: pushq %rsi
;SSE: pushq %rdx
;SSE: pushq %rcx
;SSE: pushq %rbx
;SSE: movaps %xmm15
;SSE-NEXT: movaps %xmm14
;SSE-NEXT: movaps %xmm13
;SSE-NEXT: movaps %xmm12
;SSE-NEXT: movaps %xmm11
;SSE-NEXT: movaps %xmm10
;SSE-NEXT: movaps %xmm9
;SSE-NEXT: movaps %xmm8
;SSE-NEXT: movaps %xmm7
;SSE-NEXT: movaps %xmm6
;SSE-NEXT: movaps %xmm5
;SSE-NEXT: movaps %xmm4
;SSE-NEXT: movaps %xmm3
;SSE-NEXT: movaps %xmm2
;SSE-NEXT: movaps %xmm1
;SSE-NEXT: movaps %xmm0
;AVX-LABEL:anyregcc1
;AVX: pushq %rbp
;AVX: pushq %rax
;AVX: pushq %r15
;AVX: pushq %r14
;AVX: pushq %r13
;AVX: pushq %r12
;AVX: pushq %r11
;AVX: pushq %r10
;AVX: pushq %r9
;AVX: pushq %r8
;AVX: pushq %rdi
;AVX: pushq %rsi
;AVX: pushq %rdx
;AVX: pushq %rcx
;AVX: pushq %rbx
;AVX: vmovaps %ymm15
;AVX-NEXT: vmovaps %ymm14
;AVX-NEXT: vmovaps %ymm13
;AVX-NEXT: vmovaps %ymm12
;AVX-NEXT: vmovaps %ymm11
;AVX-NEXT: vmovaps %ymm10
;AVX-NEXT: vmovaps %ymm9
;AVX-NEXT: vmovaps %ymm8
;AVX-NEXT: vmovaps %ymm7
;AVX-NEXT: vmovaps %ymm6
;AVX-NEXT: vmovaps %ymm5
;AVX-NEXT: vmovaps %ymm4
;AVX-NEXT: vmovaps %ymm3
;AVX-NEXT: vmovaps %ymm2
;AVX-NEXT: vmovaps %ymm1
;AVX-NEXT: vmovaps %ymm0
call void asm sideeffect "", "~{rax},~{rbx},~{rcx},~{rdx},~{rsi},~{rdi},~{r8},~{r9},~{r10},~{r11},~{r12},~{r13},~{r14},~{r15},~{rbp},~{xmm0},~{xmm1},~{xmm2},~{xmm3},~{xmm4},~{xmm5},~{xmm6},~{xmm7},~{xmm8},~{xmm9},~{xmm10},~{xmm11},~{xmm12},~{xmm13},~{xmm14},~{xmm15}"()
ret void
}
; Make sure we don't spill any XMMs/YMMs
declare anyregcc void @foo()
define void @anyregcc2() {
entry:
;SSE-LABEL: anyregcc2
;SSE-NOT: movaps %xmm
;AVX-LABEL: anyregcc2
;AVX-NOT: vmovups %ymm
%a0 = call <2 x double> asm sideeffect "", "={xmm0}"() nounwind
%a1 = call <2 x double> asm sideeffect "", "={xmm1}"() nounwind
%a2 = call <2 x double> asm sideeffect "", "={xmm2}"() nounwind
%a3 = call <2 x double> asm sideeffect "", "={xmm3}"() nounwind
%a4 = call <2 x double> asm sideeffect "", "={xmm4}"() nounwind
%a5 = call <2 x double> asm sideeffect "", "={xmm5}"() nounwind
%a6 = call <2 x double> asm sideeffect "", "={xmm6}"() nounwind
%a7 = call <2 x double> asm sideeffect "", "={xmm7}"() nounwind
%a8 = call <2 x double> asm sideeffect "", "={xmm8}"() nounwind
%a9 = call <2 x double> asm sideeffect "", "={xmm9}"() nounwind
%a10 = call <2 x double> asm sideeffect "", "={xmm10}"() nounwind
%a11 = call <2 x double> asm sideeffect "", "={xmm11}"() nounwind
%a12 = call <2 x double> asm sideeffect "", "={xmm12}"() nounwind
%a13 = call <2 x double> asm sideeffect "", "={xmm13}"() nounwind
%a14 = call <2 x double> asm sideeffect "", "={xmm14}"() nounwind
%a15 = call <2 x double> asm sideeffect "", "={xmm15}"() nounwind
call anyregcc void @foo()
call void asm sideeffect "", "{xmm0},{xmm1},{xmm2},{xmm3},{xmm4},{xmm5},{xmm6},{xmm7},{xmm8},{xmm9},{xmm10},{xmm11},{xmm12},{xmm13},{xmm14},{xmm15}"(<2 x double> %a0, <2 x double> %a1, <2 x double> %a2, <2 x double> %a3, <2 x double> %a4, <2 x double> %a5, <2 x double> %a6, <2 x double> %a7, <2 x double> %a8, <2 x double> %a9, <2 x double> %a10, <2 x double> %a11, <2 x double> %a12, <2 x double> %a13, <2 x double> %a14, <2 x double> %a15)
ret void
}
declare void @llvm.experimental.patchpoint.void(i64, i32, i8*, i32, ...)
declare i64 @llvm.experimental.patchpoint.i64(i64, i32, i8*, i32, ...)
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