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llvm-project/llvm/test/CodeGen/X86/stackmap-nops.ll

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[Stackmaps] Make ithe frame-pointer required for stackmaps. Do not eliminate the frame pointer if there is a stackmap or patchpoint in the function. All stackmap references should be FP relative. This fixes PR21107. llvm-svn: 218920
2014-10-03 06:21:49 +08:00
; RUN: llc < %s -mtriple=x86_64-apple-darwin -mcpu=corei7 | FileCheck %s
[Stackmap] Emit multi-byte nops for X86. llvm-svn: 196334
2013-12-04 08:39:08 +08:00
define void @nop_test() {
entry:
; CHECK-LABEL: nop_test:
; CHECK: nop
; CHECK: xchgw %ax, %ax
; CHECK: nopl (%rax)
; CHECK: nopl 8(%rax)
; CHECK: nopl 8(%rax,%rax)
; CHECK: nopw 8(%rax,%rax)
; CHECK: nopl 512(%rax)
; CHECK: nopl 512(%rax,%rax)
; CHECK: nopw 512(%rax,%rax)
; CHECK: nopw %cs:512(%rax,%rax)
; 11
; CHECK: .byte 102
; CHECK-NEXT: nopw %cs:512(%rax,%rax)
; 12
; CHECK: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: nopw %cs:512(%rax,%rax)
; 13
; CHECK: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: nopw %cs:512(%rax,%rax)
; 14
; CHECK: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: nopw %cs:512(%rax,%rax)
; 15
; CHECK: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: nopw %cs:512(%rax,%rax)
; 16
; CHECK: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: nopw %cs:512(%rax,%rax)
; CHECK-NEXT: nop
; 17
; CHECK: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: nopw %cs:512(%rax,%rax)
; CHECK-NEXT: xchgw %ax, %ax
; 18
; CHECK: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: nopw %cs:512(%rax,%rax)
; CHECK-NEXT: nopl (%rax)
; 19
; CHECK: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: nopw %cs:512(%rax,%rax)
; CHECK-NEXT: nopl 8(%rax)
; 20
; CHECK: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: nopw %cs:512(%rax,%rax)
; CHECK-NEXT: nopl 8(%rax,%rax)
; 21
; CHECK: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: nopw %cs:512(%rax,%rax)
; CHECK-NEXT: nopw 8(%rax,%rax)
; 22
; CHECK: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: nopw %cs:512(%rax,%rax)
; CHECK-NEXT: nopl 512(%rax)
; 23
; CHECK: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: nopw %cs:512(%rax,%rax)
; CHECK-NEXT: nopl 512(%rax,%rax)
; 24
; CHECK: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: nopw %cs:512(%rax,%rax)
; CHECK-NEXT: nopw 512(%rax,%rax)
; 25
; CHECK: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: nopw %cs:512(%rax,%rax)
; CHECK-NEXT: nopw %cs:512(%rax,%rax)
; 26
; CHECK: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: nopw %cs:512(%rax,%rax)
; CHECK-NEXT: .byte 102
; CHECK-NEXT: nopw %cs:512(%rax,%rax)
; 27
; CHECK: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: nopw %cs:512(%rax,%rax)
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: nopw %cs:512(%rax,%rax)
; 28
; CHECK: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: nopw %cs:512(%rax,%rax)
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: nopw %cs:512(%rax,%rax)
;29
; CHECK: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: nopw %cs:512(%rax,%rax)
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: nopw %cs:512(%rax,%rax)
; 30
; CHECK: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: nopw %cs:512(%rax,%rax)
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: nopw %cs:512(%rax,%rax)
Grow the stackmap/patchpoint format to hold 64-bit IDs. llvm-svn: 197255
2013-12-14 02:37:10 +08:00
tail call void (i64, i32, ...)* @llvm.experimental.stackmap(i64 0, i32 0)
tail call void (i64, i32, ...)* @llvm.experimental.stackmap(i64 1, i32 1)
tail call void (i64, i32, ...)* @llvm.experimental.stackmap(i64 2, i32 2)
tail call void (i64, i32, ...)* @llvm.experimental.stackmap(i64 3, i32 3)
tail call void (i64, i32, ...)* @llvm.experimental.stackmap(i64 4, i32 4)
tail call void (i64, i32, ...)* @llvm.experimental.stackmap(i64 5, i32 5)
tail call void (i64, i32, ...)* @llvm.experimental.stackmap(i64 6, i32 6)
tail call void (i64, i32, ...)* @llvm.experimental.stackmap(i64 7, i32 7)
tail call void (i64, i32, ...)* @llvm.experimental.stackmap(i64 8, i32 8)
tail call void (i64, i32, ...)* @llvm.experimental.stackmap(i64 9, i32 9)
tail call void (i64, i32, ...)* @llvm.experimental.stackmap(i64 10, i32 10)
tail call void (i64, i32, ...)* @llvm.experimental.stackmap(i64 11, i32 11)
tail call void (i64, i32, ...)* @llvm.experimental.stackmap(i64 12, i32 12)
tail call void (i64, i32, ...)* @llvm.experimental.stackmap(i64 13, i32 13)
tail call void (i64, i32, ...)* @llvm.experimental.stackmap(i64 14, i32 14)
tail call void (i64, i32, ...)* @llvm.experimental.stackmap(i64 15, i32 15)
tail call void (i64, i32, ...)* @llvm.experimental.stackmap(i64 16, i32 16)
tail call void (i64, i32, ...)* @llvm.experimental.stackmap(i64 17, i32 17)
tail call void (i64, i32, ...)* @llvm.experimental.stackmap(i64 18, i32 18)
tail call void (i64, i32, ...)* @llvm.experimental.stackmap(i64 19, i32 19)
tail call void (i64, i32, ...)* @llvm.experimental.stackmap(i64 20, i32 20)
tail call void (i64, i32, ...)* @llvm.experimental.stackmap(i64 21, i32 21)
tail call void (i64, i32, ...)* @llvm.experimental.stackmap(i64 22, i32 22)
tail call void (i64, i32, ...)* @llvm.experimental.stackmap(i64 23, i32 23)
tail call void (i64, i32, ...)* @llvm.experimental.stackmap(i64 24, i32 24)
tail call void (i64, i32, ...)* @llvm.experimental.stackmap(i64 25, i32 25)
tail call void (i64, i32, ...)* @llvm.experimental.stackmap(i64 26, i32 26)
tail call void (i64, i32, ...)* @llvm.experimental.stackmap(i64 27, i32 27)
tail call void (i64, i32, ...)* @llvm.experimental.stackmap(i64 28, i32 28)
tail call void (i64, i32, ...)* @llvm.experimental.stackmap(i64 29, i32 29)
tail call void (i64, i32, ...)* @llvm.experimental.stackmap(i64 30, i32 30)
[X86] Add comments to clarify some non-obvious lines in the stackmap-nops.ll testcases. Based on code review from Philip Reames. Thanks Philip! llvm-svn: 213923
2014-07-25 12:50:08 +08:00
; Add an extra stackmap with a zero-length shadow to thwart the shadow
; optimization. This will force all 15 bytes of the previous shadow to be
; padded with nops.
[X86] Optimize stackmap shadows on X86. This patch minimizes the number of nops that must be emitted on X86 to satisfy stackmap shadow constraints. To minimize the number of nops inserted, the X86AsmPrinter now records the size of the most recent stackmap's shadow in the StackMapShadowTracker class, and tracks the number of instruction bytes emitted since the that stackmap instruction was encountered. Padding is emitted (if it is required at all) immediately before the next stackmap/patchpoint instruction, or at the end of the basic block. This optimization should reduce code-size and improve performance for people using the llvm stackmap intrinsic on X86. <rdar://problem/14959522> llvm-svn: 213892
2014-07-25 04:40:55 +08:00
tail call void (i64, i32, ...)* @llvm.experimental.stackmap(i64 31, i32 0)
[Stackmap] Emit multi-byte nops for X86. llvm-svn: 196334
2013-12-04 08:39:08 +08:00
ret void
}
Grow the stackmap/patchpoint format to hold 64-bit IDs. llvm-svn: 197255
2013-12-14 02:37:10 +08:00
declare void @llvm.experimental.stackmap(i64, i32, ...)