[Stackmap] Emit multi-byte nops for X86.
llvm-svn: 196334
diff --git a/llvm/test/CodeGen/X86/patchpoint.ll b/llvm/test/CodeGen/X86/patchpoint.ll
index d534639..2fd1942 100644
--- a/llvm/test/CodeGen/X86/patchpoint.ll
+++ b/llvm/test/CodeGen/X86/patchpoint.ll
@@ -7,10 +7,10 @@
; CHECK-LABEL: trivial_patchpoint_codegen:
; CHECK: movabsq $-559038736, %r11
; CHECK-NEXT: callq *%r11
-; CHECK-NEXT: nop
+; CHECK-NEXT: xchgw %ax, %ax
; CHECK: movq %rax, %[[REG:r.+]]
; CHECK: callq *%r11
-; CHECK-NEXT: nop
+; CHECK-NEXT: xchgw %ax, %ax
; CHECK: movq %[[REG]], %rax
; CHECK: ret
%resolveCall2 = inttoptr i64 -559038736 to i8*
@@ -84,11 +84,7 @@
entry:
; CHECK-LABEL: small_patchpoint_codegen:
; CHECK: Ltmp
-; CHECK: nop
-; CHECK-NEXT: nop
-; CHECK-NEXT: nop
-; CHECK-NEXT: nop
-; CHECK-NEXT: nop
+; CHECK: nopl 8(%rax,%rax)
; CHECK-NEXT: popq
; CHECK-NEXT: ret
%result = tail call i64 (i32, i32, i8*, i32, ...)* @llvm.experimental.patchpoint.i64(i32 5, i32 5, i8* null, i32 2, i64 %p1, i64 %p2)
diff --git a/llvm/test/CodeGen/X86/stackmap-nops.ll b/llvm/test/CodeGen/X86/stackmap-nops.ll
new file mode 100644
index 0000000..e4f7527
--- /dev/null
+++ b/llvm/test/CodeGen/X86/stackmap-nops.ll
@@ -0,0 +1,230 @@
+; RUN: llc < %s -mtriple=x86_64-apple-darwin -mcpu=corei7 -disable-fp-elim | FileCheck %s
+
+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)
+ tail call void (i32, i32, ...)* @llvm.experimental.stackmap(i32 0, i32 0)
+ tail call void (i32, i32, ...)* @llvm.experimental.stackmap(i32 1, i32 1)
+ tail call void (i32, i32, ...)* @llvm.experimental.stackmap(i32 2, i32 2)
+ tail call void (i32, i32, ...)* @llvm.experimental.stackmap(i32 3, i32 3)
+ tail call void (i32, i32, ...)* @llvm.experimental.stackmap(i32 4, i32 4)
+ tail call void (i32, i32, ...)* @llvm.experimental.stackmap(i32 5, i32 5)
+ tail call void (i32, i32, ...)* @llvm.experimental.stackmap(i32 6, i32 6)
+ tail call void (i32, i32, ...)* @llvm.experimental.stackmap(i32 7, i32 7)
+ tail call void (i32, i32, ...)* @llvm.experimental.stackmap(i32 8, i32 8)
+ tail call void (i32, i32, ...)* @llvm.experimental.stackmap(i32 9, i32 9)
+ tail call void (i32, i32, ...)* @llvm.experimental.stackmap(i32 10, i32 10)
+ tail call void (i32, i32, ...)* @llvm.experimental.stackmap(i32 11, i32 11)
+ tail call void (i32, i32, ...)* @llvm.experimental.stackmap(i32 12, i32 12)
+ tail call void (i32, i32, ...)* @llvm.experimental.stackmap(i32 13, i32 13)
+ tail call void (i32, i32, ...)* @llvm.experimental.stackmap(i32 14, i32 14)
+ tail call void (i32, i32, ...)* @llvm.experimental.stackmap(i32 15, i32 15)
+ tail call void (i32, i32, ...)* @llvm.experimental.stackmap(i32 16, i32 16)
+ tail call void (i32, i32, ...)* @llvm.experimental.stackmap(i32 17, i32 17)
+ tail call void (i32, i32, ...)* @llvm.experimental.stackmap(i32 18, i32 18)
+ tail call void (i32, i32, ...)* @llvm.experimental.stackmap(i32 19, i32 19)
+ tail call void (i32, i32, ...)* @llvm.experimental.stackmap(i32 20, i32 20)
+ tail call void (i32, i32, ...)* @llvm.experimental.stackmap(i32 21, i32 21)
+ tail call void (i32, i32, ...)* @llvm.experimental.stackmap(i32 22, i32 22)
+ tail call void (i32, i32, ...)* @llvm.experimental.stackmap(i32 23, i32 23)
+ tail call void (i32, i32, ...)* @llvm.experimental.stackmap(i32 24, i32 24)
+ tail call void (i32, i32, ...)* @llvm.experimental.stackmap(i32 25, i32 25)
+ tail call void (i32, i32, ...)* @llvm.experimental.stackmap(i32 26, i32 26)
+ tail call void (i32, i32, ...)* @llvm.experimental.stackmap(i32 27, i32 27)
+ tail call void (i32, i32, ...)* @llvm.experimental.stackmap(i32 28, i32 28)
+ tail call void (i32, i32, ...)* @llvm.experimental.stackmap(i32 29, i32 29)
+ tail call void (i32, i32, ...)* @llvm.experimental.stackmap(i32 30, i32 30)
+ ret void
+}
+
+declare void @llvm.experimental.stackmap(i32, i32, ...)