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ff9be37421
"core-avx" does not exist; I changed to "nehalem" git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@263932 91177308-0d34-0410-b5e6-96231b3b80d8
163 lines
6.9 KiB
LLVM
163 lines
6.9 KiB
LLVM
; RUN: llc -stack-symbol-ordering=0 -mcpu=nehalem -debug-only=stackmaps < %s | FileCheck %s
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; REQUIRES: asserts
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target triple = "x86_64-pc-linux-gnu"
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; Can we lower a single vector?
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define <2 x i8 addrspace(1)*> @test(<2 x i8 addrspace(1)*> %obj) gc "statepoint-example" {
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entry:
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; CHECK-LABEL: @test
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; CHECK: subq $24, %rsp
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; CHECK: movaps %xmm0, (%rsp)
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; CHECK: callq do_safepoint
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; CHECK: movaps (%rsp), %xmm0
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; CHECK: addq $24, %rsp
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%safepoint_token = call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 0, i32 0, void ()* @do_safepoint, i32 0, i32 0, i32 0, i32 0, <2 x i8 addrspace(1)*> %obj)
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%obj.relocated = call coldcc <2 x i8 addrspace(1)*> @llvm.experimental.gc.relocate.v2p1i8(token %safepoint_token, i32 7, i32 7) ; (%obj, %obj)
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ret <2 x i8 addrspace(1)*> %obj.relocated
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}
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; Can we lower the base, derived pairs if both are vectors?
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define <2 x i8 addrspace(1)*> @test2(<2 x i8 addrspace(1)*> %obj, i64 %offset) gc "statepoint-example" {
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entry:
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; CHECK-LABEL: @test2
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; CHECK: subq $40, %rsp
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; CHECK: movd %rdi, %xmm1
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; CHECK: pshufd $68, %xmm1, %xmm1 # xmm1 = xmm1[0,1,0,1]
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; CHECK: paddq %xmm0, %xmm1
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; CHECK: movdqa %xmm0, 16(%rsp)
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; CHECK: movdqa %xmm1, (%rsp)
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; CHECK: callq do_safepoint
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; CHECK: movaps (%rsp), %xmm0
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; CHECK: addq $40, %rsp
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%derived = getelementptr i8, <2 x i8 addrspace(1)*> %obj, i64 %offset
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%safepoint_token = call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 0, i32 0, void ()* @do_safepoint, i32 0, i32 0, i32 0, i32 0, <2 x i8 addrspace(1)*> %obj, <2 x i8 addrspace(1)*> %derived)
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%derived.relocated = call coldcc <2 x i8 addrspace(1)*> @llvm.experimental.gc.relocate.v2p1i8(token %safepoint_token, i32 7, i32 8) ; (%obj, %derived)
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ret <2 x i8 addrspace(1)*> %derived.relocated
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}
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; Originally, this was just a variant of @test2 above, but it ends up
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; covering a bunch of interesting missed optimizations. Specifically:
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; - We waste a stack slot for a value that a backend transform pass
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; CSEd to another spilled one.
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; - We don't remove the testb even though it serves no purpose
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; - We could in principal reuse the argument memory (%rsi) and do away
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; with stack slots entirely.
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define <2 x i64 addrspace(1)*> @test3(i1 %cnd, <2 x i64 addrspace(1)*>* %ptr) gc "statepoint-example" {
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entry:
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; CHECK-LABEL: @test3
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; CHECK: subq $40, %rsp
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; CHECK: testb $1, %dil
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; CHECK: movaps (%rsi), %xmm0
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; CHECK: movaps %xmm0, 16(%rsp)
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; CHECK: movaps %xmm0, (%rsp)
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; CHECK: callq do_safepoint
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; CHECK: movaps (%rsp), %xmm0
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; CHECK: addq $40, %rsp
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br i1 %cnd, label %taken, label %untaken
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taken: ; preds = %entry
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%obja = load <2 x i64 addrspace(1)*>, <2 x i64 addrspace(1)*>* %ptr
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br label %merge
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untaken: ; preds = %entry
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%objb = load <2 x i64 addrspace(1)*>, <2 x i64 addrspace(1)*>* %ptr
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br label %merge
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merge: ; preds = %untaken, %taken
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%obj.base = phi <2 x i64 addrspace(1)*> [ %obja, %taken ], [ %objb, %untaken ]
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%obj = phi <2 x i64 addrspace(1)*> [ %obja, %taken ], [ %objb, %untaken ]
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%safepoint_token = call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 0, i32 0, void ()* @do_safepoint, i32 0, i32 0, i32 0, i32 0, <2 x i64 addrspace(1)*> %obj, <2 x i64 addrspace(1)*> %obj.base)
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%obj.relocated = call coldcc <2 x i8 addrspace(1)*> @llvm.experimental.gc.relocate.v2p1i8(token %safepoint_token, i32 8, i32 7) ; (%obj.base, %obj)
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%obj.relocated.casted = bitcast <2 x i8 addrspace(1)*> %obj.relocated to <2 x i64 addrspace(1)*>
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%obj.base.relocated = call coldcc <2 x i8 addrspace(1)*> @llvm.experimental.gc.relocate.v2p1i8(token %safepoint_token, i32 8, i32 8) ; (%obj.base, %obj.base)
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%obj.base.relocated.casted = bitcast <2 x i8 addrspace(1)*> %obj.base.relocated to <2 x i64 addrspace(1)*>
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ret <2 x i64 addrspace(1)*> %obj.relocated.casted
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}
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; Can we handle vector constants? At the moment, we don't appear to actually
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; get selection dag nodes for these.
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define <2 x i8 addrspace(1)*> @test4() gc "statepoint-example" {
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entry:
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; CHECK-LABEL: @test4
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; CHECK: subq $24, %rsp
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; CHECK: xorps %xmm0, %xmm0
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; CHECK: movaps %xmm0, (%rsp)
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; CHECK: callq do_safepoint
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; CHECK: movaps (%rsp), %xmm0
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; CHECK: addq $24, %rsp
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%safepoint_token = call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 0, i32 0, void ()* @do_safepoint, i32 0, i32 0, i32 0, i32 0, <2 x i8 addrspace(1)*> zeroinitializer)
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%obj.relocated = call coldcc <2 x i8 addrspace(1)*> @llvm.experimental.gc.relocate.v2p1i8(token %safepoint_token, i32 7, i32 7) ; (%obj, %obj)
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ret <2 x i8 addrspace(1)*> %obj.relocated
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}
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; Check that we can lower a constant typed as i128 correctly. Note that the
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; actual value is representable in 64 bits. We don't have a representation
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; of larger than 64 bit constant in the StackMap format.
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define void @test5() gc "statepoint-example" {
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entry:
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; CHECK-LABEL: @test5
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; CHECK: push
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; CHECK: callq do_safepoint
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; CHECK: pop
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%safepoint_token = call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 0, i32 0, void ()* @do_safepoint, i32 0, i32 0, i32 0, i32 1, i128 0)
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ret void
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}
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; CHECK: __LLVM_StackMaps:
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; CHECK: .Ltmp1-test
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; Check for the two spill slots
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; Stack Maps: Loc 3: Indirect 7+0 [encoding: .byte 3, .byte 16, .short 7, .int 0]
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; Stack Maps: Loc 4: Indirect 7+0 [encoding: .byte 3, .byte 16, .short 7, .int 0]
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; CHECK: .byte 3
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; CHECK: .byte 16
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; CHECK: .short 7
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; CHECK: .long 0
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; CHECK: .byte 3
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; CHECK: .byte 16
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; CHECK: .short 7
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; CHECK: .long 0
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; CHECK: .Ltmp3-test2
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; Check for the two spill slots
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; Stack Maps: Loc 3: Indirect 7+16 [encoding: .byte 3, .byte 16, .short 7, .int 16]
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; Stack Maps: Loc 4: Indirect 7+0 [encoding: .byte 3, .byte 16, .short 7, .int 0]
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; CHECK: .byte 3
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; CHECK: .byte 16
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; CHECK: .short 7
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; CHECK: .long 16
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; CHECK: .byte 3
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; CHECK: .byte 16
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; CHECK: .short 7
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; CHECK: .long 0
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; CHECK: .Ltmp5-test3
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; Check for the four spill slots
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; Stack Maps: Loc 3: Indirect 7+16 [encoding: .byte 3, .byte 16, .short 7, .int 16]
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; Stack Maps: Loc 4: Indirect 7+16 [encoding: .byte 3, .byte 16, .short 7, .int 16]
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; Stack Maps: Loc 5: Indirect 7+16 [encoding: .byte 3, .byte 16, .short 7, .int 16]
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; Stack Maps: Loc 6: Indirect 7+0 [encoding: .byte 3, .byte 16, .short 7, .int 0]
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; CHECK: .byte 3
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; CHECK: .byte 16
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; CHECK: .short 7
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; CHECK: .long 16
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; CHECK: .byte 3
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; CHECK: .byte 16
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; CHECK: .short 7
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; CHECK: .long 16
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; CHECK: .byte 3
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; CHECK: .byte 16
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; CHECK: .short 7
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; CHECK: .long 16
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; CHECK: .byte 3
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; CHECK: .byte 16
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; CHECK: .short 7
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; CHECK: .long 0
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declare void @do_safepoint()
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declare token @llvm.experimental.gc.statepoint.p0f_isVoidf(i64, i32, void ()*, i32, i32, ...)
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declare i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token, i32, i32)
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declare <2 x i8 addrspace(1)*> @llvm.experimental.gc.relocate.v2p1i8(token, i32, i32)
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