Index: llvm/lib/Target/AArch64/AArch64AsmPrinter.cpp =================================================================== --- llvm/lib/Target/AArch64/AArch64AsmPrinter.cpp +++ llvm/lib/Target/AArch64/AArch64AsmPrinter.cpp @@ -441,8 +441,8 @@ // linker can safely perform dead code stripping. Since LLVM never // generates code that does this, it is always safe to set. OutStreamer->EmitAssemblerFlag(MCAF_SubsectionsViaSymbols); - emitStackMaps(SM); } + emitStackMaps(SM); } void AArch64AsmPrinter::EmitLOHs() { Index: llvm/test/CodeGen/AArch64/stackmap.ll =================================================================== --- /dev/null +++ llvm/test/CodeGen/AArch64/stackmap.ll @@ -0,0 +1,492 @@ +; RUN: llc < %s -mtriple=arm64-linux-gnu | FileCheck %s +; +; Note: Print verbose stackmaps using -debug-only=stackmaps. + +; CHECK-LABEL: .section .llvm_stackmaps +; CHECK-NEXT: __LLVM_StackMaps: +; Header +; CHECK-NEXT: .byte 3 +; CHECK-NEXT: .byte 0 +; CHECK-NEXT: .hword 0 +; Num Functions +; CHECK-NEXT: .word 14 +; Num LargeConstants +; CHECK-NEXT: .word 3 +; Num Callsites +; CHECK-NEXT: .word 18 + +; Functions and stack size +; CHECK-NEXT: .xword constantargs +; CHECK-NEXT: .xword 16 +; CHECK-NEXT: .xword 1 +; CHECK-NEXT: .xword osrinline +; CHECK-NEXT: .xword 32 +; CHECK-NEXT: .xword 1 +; CHECK-NEXT: .xword osrcold +; CHECK-NEXT: .xword 16 +; CHECK-NEXT: .xword 1 +; CHECK-NEXT: .xword propertyRead +; CHECK-NEXT: .xword 16 +; CHECK-NEXT: .xword 1 +; CHECK-NEXT: .xword propertyWrite +; CHECK-NEXT: .xword 16 +; CHECK-NEXT: .xword 1 +; CHECK-NEXT: .xword jsVoidCall +; CHECK-NEXT: .xword 16 +; CHECK-NEXT: .xword 1 +; CHECK-NEXT: .xword jsIntCall +; CHECK-NEXT: .xword 16 +; CHECK-NEXT: .xword 1 +; CHECK-NEXT: .xword spilledValue +; CHECK-NEXT: .xword 144 +; CHECK-NEXT: .xword 1 +; CHECK-NEXT: .xword spilledStackMapValue +; CHECK-NEXT: .xword 128 +; CHECK-NEXT: .xword 1 +; CHECK-NEXT: .xword liveConstant +; CHECK-NEXT: .xword 16 +; CHECK-NEXT: .xword 1 +; CHECK-NEXT: .xword directFrameIdx +; CHECK-NEXT: .xword 64 +; CHECK-NEXT: .xword 2 +; CHECK-NEXT: .xword longid +; CHECK-NEXT: .xword 16 +; CHECK-NEXT: .xword 4 +; CHECK-NEXT: .xword clobberLR +; CHECK-NEXT: .xword 112 +; CHECK-NEXT: .xword 1 +; CHECK-NEXT: .xword needsStackRealignment +; CHECK-NEXT: .xword -1 +; CHECK-NEXT: .xword 1 + +; Large Constants +; CHECK-NEXT: .xword 2147483648 +; CHECK-NEXT: .xword 4294967295 +; CHECK-NEXT: .xword 4294967296 + +; Callsites +; Constant arguments +; +; CHECK-NEXT: .xword 1 +; CHECK-NEXT: .word .L{{.*}}-constantargs +; CHECK-NEXT: .hword 0 +; CHECK-NEXT: .hword 12 +; SmallConstant +; CHECK-NEXT: .byte 4 +; CHECK-NEXT: .byte 0 +; CHECK-NEXT: .hword 8 +; CHECK-NEXT: .hword 0 +; CHECK-NEXT: .hword 0 +; CHECK-NEXT: .word -1 +; SmallConstant +; CHECK-NEXT: .byte 4 +; CHECK-NEXT: .byte 0 +; CHECK-NEXT: .hword 8 +; CHECK-NEXT: .hword 0 +; CHECK-NEXT: .hword 0 +; CHECK-NEXT: .word -1 +; SmallConstant +; CHECK-NEXT: .byte 4 +; CHECK-NEXT: .byte 0 +; CHECK-NEXT: .hword 8 +; CHECK-NEXT: .hword 0 +; CHECK-NEXT: .hword 0 +; CHECK-NEXT: .word 65536 +; SmallConstant +; CHECK-NEXT: .byte 4 +; CHECK-NEXT: .byte 0 +; CHECK-NEXT: .hword 8 +; CHECK-NEXT: .hword 0 +; CHECK-NEXT: .hword 0 +; CHECK-NEXT: .word 2000000000 +; SmallConstant +; CHECK-NEXT: .byte 4 +; CHECK-NEXT: .byte 0 +; CHECK-NEXT: .hword 8 +; CHECK-NEXT: .hword 0 +; CHECK-NEXT: .hword 0 +; CHECK-NEXT: .word 2147483647 +; SmallConstant +; CHECK-NEXT: .byte 4 +; CHECK-NEXT: .byte 0 +; CHECK-NEXT: .hword 8 +; CHECK-NEXT: .hword 0 +; CHECK-NEXT: .hword 0 +; CHECK-NEXT: .word -1 +; SmallConstant +; CHECK-NEXT: .byte 4 +; CHECK-NEXT: .byte 0 +; CHECK-NEXT: .hword 8 +; CHECK-NEXT: .hword 0 +; CHECK-NEXT: .hword 0 +; CHECK-NEXT: .word -1 +; SmallConstant +; CHECK-NEXT: .byte 4 +; CHECK-NEXT: .byte 0 +; CHECK-NEXT: .hword 8 +; CHECK-NEXT: .hword 0 +; CHECK-NEXT: .hword 0 +; CHECK-NEXT: .word 0 +; LargeConstant at index 0 +; CHECK-NEXT: .byte 5 +; CHECK-NEXT: .byte 0 +; CHECK-NEXT: .hword 8 +; CHECK-NEXT: .hword 0 +; CHECK-NEXT: .hword 0 +; CHECK-NEXT: .word 0 +; LargeConstant at index 1 +; CHECK-NEXT: .byte 5 +; CHECK-NEXT: .byte 0 +; CHECK-NEXT: .hword 8 +; CHECK-NEXT: .hword 0 +; CHECK-NEXT: .hword 0 +; CHECK-NEXT: .word 1 +; LargeConstant at index 2 +; CHECK-NEXT: .byte 5 +; CHECK-NEXT: .byte 0 +; CHECK-NEXT: .hword 8 +; CHECK-NEXT: .hword 0 +; CHECK-NEXT: .hword 0 +; CHECK-NEXT: .word 2 +; SmallConstant +; CHECK-NEXT: .byte 4 +; CHECK-NEXT: .byte 0 +; CHECK-NEXT: .hword 8 +; CHECK-NEXT: .hword 0 +; CHECK-NEXT: .hword 0 +; CHECK-NEXT: .word -1 + +define void @constantargs() { +entry: + %0 = inttoptr i64 12345 to i8* + tail call void (i64, i32, i8*, i32, ...) @llvm.experimental.patchpoint.void(i64 1, i32 16, i8* %0, i32 0, i16 65535, i16 -1, i32 65536, i32 2000000000, i32 2147483647, i32 -1, i32 4294967295, i32 4294967296, i64 2147483648, i64 4294967295, i64 4294967296, i64 -1) + ret void +} + +; Inline OSR Exit +; +; CHECK-LABEL: .word .L{{.*}}-osrinline +; CHECK-NEXT: .hword 0 +; CHECK-NEXT: .hword 2 +; CHECK-NEXT: .byte 1 +; CHECK-NEXT: .byte 0 +; CHECK-NEXT: .hword 8 +; CHECK-NEXT: .hword {{[0-9]+}} +; CHECK-NEXT: .hword 0 +; CHECK-NEXT: .word 0 +; CHECK-NEXT: .byte 1 +; CHECK-NEXT: .byte 0 +; CHECK-NEXT: .hword 8 +; CHECK-NEXT: .hword {{[0-9]+}} +; CHECK-NEXT: .hword 0 +; CHECK-NEXT: .word 0 +define void @osrinline(i64 %a, i64 %b) { +entry: + ; Runtime void->void call. + call void inttoptr (i64 -559038737 to void ()*)() + ; Followed by inline OSR patchpoint with 12-byte shadow and 2 live vars. + call void (i64, i32, ...) @llvm.experimental.stackmap(i64 3, i32 12, i64 %a, i64 %b) + ret void +} + +; Cold OSR Exit +; +; 2 live variables in register. +; +; CHECK-LABEL: .word .L{{.*}}-osrcold +; CHECK-NEXT: .hword 0 +; CHECK-NEXT: .hword 2 +; CHECK-NEXT: .byte 1 +; CHECK-NEXT: .byte 0 +; CHECK-NEXT: .hword 8 +; CHECK-NEXT: .hword {{[0-9]+}} +; CHECK-NEXT: .hword 0 +; CHECK-NEXT: .word 0 +; CHECK-NEXT: .byte 1 +; CHECK-NEXT: .byte 0 +; CHECK-NEXT: .hword 8 +; CHECK-NEXT: .hword {{[0-9]+}} +; CHECK-NEXT: .hword 0 +; CHECK-NEXT: .word 0 +define void @osrcold(i64 %a, i64 %b) { +entry: + %test = icmp slt i64 %a, %b + br i1 %test, label %ret, label %cold +cold: + ; OSR patchpoint with 12-byte nop-slide and 2 live vars. + %thunk = inttoptr i64 3735928559 to i8* + call void (i64, i32, i8*, i32, ...) @llvm.experimental.patchpoint.void(i64 4, i32 16, i8* %thunk, i32 0, i64 %a, i64 %b) + unreachable +ret: + ret void +} + +; Property Read +; CHECK-LABEL: .word .L{{.*}}-propertyRead +; CHECK-NEXT: .hword 0 +; CHECK-NEXT: .hword 2 +; CHECK-NEXT: .byte 1 +; CHECK-NEXT: .byte 0 +; CHECK-NEXT: .hword 8 +; CHECK-NEXT: .hword {{[0-9]+}} +; CHECK-NEXT: .hword 0 +; CHECK-NEXT: .word 0 +; CHECK-NEXT: .byte 1 +; CHECK-NEXT: .byte 0 +; CHECK-NEXT: .hword 8 +; CHECK-NEXT: .hword {{[0-9]+}} +; CHECK-NEXT: .hword 0 +; CHECK-NEXT: .word 0 +define i64 @propertyRead(i64* %obj) { +entry: + %resolveRead = inttoptr i64 3735928559 to i8* + %result = call anyregcc i64 (i64, i32, i8*, i32, ...) @llvm.experimental.patchpoint.i64(i64 5, i32 16, i8* %resolveRead, i32 1, i64* %obj) + %add = add i64 %result, 3 + ret i64 %add +} + +; Property Write +; CHECK-LABEL: .word .L{{.*}}-propertyWrite +; CHECK-NEXT: .hword 0 +; CHECK-NEXT: .hword 2 +; CHECK-NEXT: .byte 1 +; CHECK-NEXT: .byte 0 +; CHECK-NEXT: .hword 8 +; CHECK-NEXT: .hword {{[0-9]+}} +; CHECK-NEXT: .hword 0 +; CHECK-NEXT: .word 0 +; CHECK-NEXT: .byte 1 +; CHECK-NEXT: .byte 0 +; CHECK-NEXT: .hword 8 +; CHECK-NEXT: .hword {{[0-9]+}} +; CHECK-NEXT: .hword 0 +; CHECK-NEXT: .word 0 +define void @propertyWrite(i64 %dummy1, i64* %obj, i64 %dummy2, i64 %a) { +entry: + %resolveWrite = inttoptr i64 3735928559 to i8* + call anyregcc void (i64, i32, i8*, i32, ...) @llvm.experimental.patchpoint.void(i64 6, i32 16, i8* %resolveWrite, i32 2, i64* %obj, i64 %a) + ret void +} + +; Void JS Call +; +; 2 live variables in registers. +; +; CHECK-LABEL: .word .L{{.*}}-jsVoidCall +; CHECK-NEXT: .hword 0 +; CHECK-NEXT: .hword 2 +; CHECK-NEXT: .byte 1 +; CHECK-NEXT: .byte 0 +; CHECK-NEXT: .hword 8 +; CHECK-NEXT: .hword {{[0-9]+}} +; CHECK-NEXT: .hword 0 +; CHECK-NEXT: .word 0 +; CHECK-NEXT: .byte 1 +; CHECK-NEXT: .byte 0 +; CHECK-NEXT: .hword 8 +; CHECK-NEXT: .hword {{[0-9]+}} +; CHECK-NEXT: .hword 0 +; CHECK-NEXT: .word 0 +define void @jsVoidCall(i64 %dummy1, i64* %obj, i64 %arg, i64 %l1, i64 %l2) { +entry: + %resolveCall = inttoptr i64 3735928559 to i8* + call void (i64, i32, i8*, i32, ...) @llvm.experimental.patchpoint.void(i64 7, i32 16, i8* %resolveCall, i32 2, i64* %obj, i64 %arg, i64 %l1, i64 %l2) + ret void +} + +; i64 JS Call +; +; 2 live variables in registers. +; +; CHECK-LABEL: .word .L{{.*}}-jsIntCall +; CHECK-NEXT: .hword 0 +; CHECK-NEXT: .hword 2 +; CHECK-NEXT: .byte 1 +; CHECK-NEXT: .byte 0 +; CHECK-NEXT: .hword 8 +; CHECK-NEXT: .hword {{[0-9]+}} +; CHECK-NEXT: .hword 0 +; CHECK-NEXT: .word 0 +; CHECK-NEXT: .byte 1 +; CHECK-NEXT: .byte 0 +; CHECK-NEXT: .hword 8 +; CHECK-NEXT: .hword {{[0-9]+}} +; CHECK-NEXT: .hword 0 +; CHECK-NEXT: .word 0 +define i64 @jsIntCall(i64 %dummy1, i64* %obj, i64 %arg, i64 %l1, i64 %l2) { +entry: + %resolveCall = inttoptr i64 3735928559 to i8* + %result = call i64 (i64, i32, i8*, i32, ...) @llvm.experimental.patchpoint.i64(i64 8, i32 16, i8* %resolveCall, i32 2, i64* %obj, i64 %arg, i64 %l1, i64 %l2) + %add = add i64 %result, 3 + ret i64 %add +} + +; Spilled stack map values. +; +; Verify 28 stack map entries. +; +; CHECK-LABEL: .word .L{{.*}}-spilledValue +; CHECK-NEXT: .hword 0 +; CHECK-NEXT: .hword 28 +; +; Check that at least one is a spilled entry from RBP. +; Location: Indirect RBP + ... +; CHECK: .byte 3 +; CHECK-NEXT: .byte 0 +; CHECK-NEXT: .hword 8 +; CHECK-NEXT: .hword 29 +; CHECK-NEXT: .hword 0 +; CHECK-NEXT: .word +define void @spilledValue(i64 %arg0, i64 %arg1, i64 %arg2, i64 %arg3, i64 %arg4, i64 %l0, i64 %l1, i64 %l2, i64 %l3, i64 %l4, i64 %l5, i64 %l6, i64 %l7, i64 %l8, i64 %l9, i64 %l10, i64 %l11, i64 %l12, i64 %l13, i64 %l14, i64 %l15, i64 %l16, i64 %l17, i64 %l18, i64 %l19, i64 %l20, i64 %l21, i64 %l22, i64 %l23, i64 %l24, i64 %l25, i64 %l26, i64 %l27) { +entry: + call void (i64, i32, i8*, i32, ...) @llvm.experimental.patchpoint.void(i64 11, i32 20, i8* null, i32 5, i64 %arg0, i64 %arg1, i64 %arg2, i64 %arg3, i64 %arg4, i64 %l0, i64 %l1, i64 %l2, i64 %l3, i64 %l4, i64 %l5, i64 %l6, i64 %l7, i64 %l8, i64 %l9, i64 %l10, i64 %l11, i64 %l12, i64 %l13, i64 %l14, i64 %l15, i64 %l16, i64 %l17, i64 %l18, i64 %l19, i64 %l20, i64 %l21, i64 %l22, i64 %l23, i64 %l24, i64 %l25, i64 %l26, i64 %l27) + ret void +} + +; Spilled stack map values. +; +; Verify 30 stack map entries. +; +; CHECK-LABEL: .word .L{{.*}}-spilledStackMapValue +; CHECK-NEXT: .hword 0 +; CHECK-NEXT: .hword 30 +; +; Check that at least one is a spilled entry from RBP. +; Location: Indirect RBP + ... +; CHECK: .byte 3 +; CHECK-NEXT: .byte 0 +; CHECK-NEXT: .hword 8 +; CHECK-NEXT: .hword 29 +; CHECK-NEXT: .hword 0 +; CHECK-NEXT: .word +define webkit_jscc void @spilledStackMapValue(i64 %l0, i64 %l1, i64 %l2, i64 %l3, i64 %l4, i64 %l5, i64 %l6, i64 %l7, i64 %l8, i64 %l9, i64 %l10, i64 %l11, i64 %l12, i64 %l13, i64 %l14, i64 %l15, i64 %l16, i64 %l17, i64 %l18, i64 %l19, i64 %l20, i64 %l21, i64 %l22, i64 %l23, i64 %l24, i64 %l25, i64 %l26, i64 %l27, i64 %l28, i64 %l29) { +entry: + call void (i64, i32, ...) @llvm.experimental.stackmap(i64 12, i32 16, i64 %l0, i64 %l1, i64 %l2, i64 %l3, i64 %l4, i64 %l5, i64 %l6, i64 %l7, i64 %l8, i64 %l9, i64 %l10, i64 %l11, i64 %l12, i64 %l13, i64 %l14, i64 %l15, i64 %l16, i64 %l17, i64 %l18, i64 %l19, i64 %l20, i64 %l21, i64 %l22, i64 %l23, i64 %l24, i64 %l25, i64 %l26, i64 %l27, i64 %l28, i64 %l29) + ret void +} + +; Map a constant value. +; +; CHECK-LABEL: .word .L{{.*}}-liveConstant +; CHECK-NEXT: .hword 0 +; 1 location +; CHECK-NEXT: .hword 1 +; Loc 0: SmallConstant +; CHECK-NEXT: .byte 4 +; CHECK-NEXT: .byte 0 +; CHECK-NEXT: .hword 8 +; CHECK-NEXT: .hword 0 +; CHECK-NEXT: .hword 0 +; CHECK-NEXT: .word 33 + +define void @liveConstant() { + tail call void (i64, i32, ...) @llvm.experimental.stackmap(i64 15, i32 4, i32 33) + ret void +} + +; Directly map an alloca's address. +; +; Callsite 16 +; CHECK-LABEL: .word .L{{.*}}-directFrameIdx +; CHECK-NEXT: .hword 0 +; 1 location +; CHECK-NEXT: .hword 1 +; Loc 0: Direct RBP - ofs +; CHECK-NEXT: .byte 2 +; CHECK-NEXT: .byte 0 +; CHECK-NEXT: .hword 8 +; CHECK-NEXT: .hword 29 +; CHECK-NEXT: .hword 0 +; CHECK-NEXT: .word + +; Callsite 17 +; CHECK-LABEL: .word .L{{.*}}-directFrameIdx +; CHECK-NEXT: .hword 0 +; 2 locations +; CHECK-NEXT: .hword 2 +; Loc 0: Direct RBP - ofs +; CHECK-NEXT: .byte 2 +; CHECK-NEXT: .byte 0 +; CHECK-NEXT: .hword 8 +; CHECK-NEXT: .hword 29 +; CHECK-NEXT: .hword 0 +; CHECK-NEXT: .word +; Loc 1: Direct RBP - ofs +; CHECK-NEXT: .byte 2 +; CHECK-NEXT: .byte 0 +; CHECK-NEXT: .hword 8 +; CHECK-NEXT: .hword 29 +; CHECK-NEXT: .hword 0 +; CHECK-NEXT: .word +define void @directFrameIdx() { +entry: + %metadata1 = alloca i64, i32 3, align 8 + store i64 11, i64* %metadata1 + store i64 12, i64* %metadata1 + store i64 13, i64* %metadata1 + call void (i64, i32, ...) @llvm.experimental.stackmap(i64 16, i32 0, i64* %metadata1) + %metadata2 = alloca i8, i32 4, align 8 + %metadata3 = alloca i16, i32 4, align 8 + call void (i64, i32, i8*, i32, ...) @llvm.experimental.patchpoint.void(i64 17, i32 4, i8* null, i32 0, i8* %metadata2, i16* %metadata3) + ret void +} + +; Test a 64-bit ID. +; +; CHECK: .xword 4294967295 +; CHECK-LABEL: .word .L{{.*}}-longid +; CHECK: .xword 4294967296 +; CHECK-LABEL: .word .L{{.*}}-longid +; CHECK: .xword 9223372036854775807 +; CHECK-LABEL: .word .L{{.*}}-longid +; CHECK: .xword -1 +; CHECK-LABEL: .word .L{{.*}}-longid +define void @longid() { +entry: + tail call void (i64, i32, i8*, i32, ...) @llvm.experimental.patchpoint.void(i64 4294967295, i32 0, i8* null, i32 0) + tail call void (i64, i32, i8*, i32, ...) @llvm.experimental.patchpoint.void(i64 4294967296, i32 0, i8* null, i32 0) + tail call void (i64, i32, i8*, i32, ...) @llvm.experimental.patchpoint.void(i64 9223372036854775807, i32 0, i8* null, i32 0) + tail call void (i64, i32, i8*, i32, ...) @llvm.experimental.patchpoint.void(i64 -1, i32 0, i8* null, i32 0) + ret void +} + +; Map a value when R11 is the only free register. +; The scratch register should not be used for a live stackmap value. +; +; CHECK-LABEL: .word .L{{.*}}-clobberLR +; CHECK-NEXT: .hword 0 +; 1 location +; CHECK-NEXT: .hword 1 +; Loc 0: Indirect fp - offset +; CHECK-NEXT: .byte 3 +; CHECK-NEXT: .byte 0 +; CHECK-NEXT: .hword 4 +; CHECK-NEXT: .hword 29 +; CHECK-NEXT: .hword 0 +; CHECK-NEXT: .word -{{[0-9]+}} +define void @clobberLR(i32 %a) { + tail call void asm sideeffect "nop", "~{x0},~{x1},~{x2},~{x3},~{x4},~{x5},~{x6},~{x7},~{x8},~{x9},~{x10},~{x11},~{x12},~{x13},~{x14},~{x15},~{x16},~{x17},~{x18},~{x19},~{x20},~{x21},~{x22},~{x23},~{x24},~{x25},~{x26},~{x27},~{x28},~{x29},~{x31}"() nounwind + tail call void (i64, i32, ...) @llvm.experimental.stackmap(i64 16, i32 8, i32 %a) + ret void +} + +; A stack frame which needs to be realigned at runtime (to meet alignment +; criteria for values on the stack) does not have a fixed frame size. +; CHECK-LABEL: .word .L{{.*}}-needsStackRealignment +; CHECK-NEXT: .hword 0 +; 0 locations +; CHECK-NEXT: .hword 0 +define void @needsStackRealignment() { + %val = alloca i64, i32 3, align 128 + tail call void (...) @escape_values(i64* %val) +; Note: Adding any non-constant to the stackmap would fail because we +; expected to be able to address off the frame pointer. In a realigned +; frame, we must use the stack pointer instead. This is a separate bug. + tail call void (i64, i32, ...) @llvm.experimental.stackmap(i64 0, i32 0) + ret void +} +declare void @escape_values(...) + +declare void @llvm.experimental.stackmap(i64, i32, ...) +declare void @llvm.experimental.patchpoint.void(i64, i32, i8*, i32, ...) +declare i64 @llvm.experimental.patchpoint.i64(i64, i32, i8*, i32, ...)