Imported Upstream version 5.18.0.246

Former-commit-id: 0c7ce5b1a7851e13f22acfd379b7f9fb304e4833

external/llvm/test/CodeGen/X86/xray-attribute-instrumentation.ll

@@ -0,0 +1,58 @@
+; RUN: llc -filetype=asm -o - -mtriple=x86_64-unknown-linux-gnu < %s | FileCheck %s
+; RUN: llc -filetype=asm -o - -mtriple=x86_64-unknown-linux-gnu \
+; RUN:    -relocation-model=pic < %s | FileCheck %s
+; RUN: llc -filetype=asm -o - -mtriple=x86_64-darwin-unknown    < %s | FileCheck %s
+
+define i32 @foo() nounwind noinline uwtable "function-instrument"="xray-always" {
+; CHECK:       .p2align 1, 0x90
+; CHECK-LABEL: Lxray_sled_0:
+; CHECK:       .ascii "\353\t"
+; CHECK-NEXT:  nopw 512(%rax,%rax)
+  ret i32 0
+; CHECK:       .p2align 1, 0x90
+; CHECK-LABEL: Lxray_sled_1:
+; CHECK:       retq
+; CHECK-NEXT:  nopw %cs:512(%rax,%rax)
+}
+; CHECK-LABEL: xray_instr_map
+; CHECK-LABEL: Lxray_sleds_start0:
+; CHECK:       .quad {{.*}}xray_sled_0
+; CHECK:       .quad {{.*}}xray_sled_1
+; CHECK-LABEL: Lxray_sleds_end0:
+; CHECK-LABEL: xray_fn_idx
+; CHECK:       .quad {{.*}}xray_sleds_start0
+; CHECK-NEXT:  .quad {{.*}}xray_sleds_end0
+
+
+; We test multiple returns in a single function to make sure we're getting all
+; of them with XRay instrumentation.
+define i32 @bar(i32 %i) nounwind noinline uwtable "function-instrument"="xray-always" {
+; CHECK:       .p2align 1, 0x90
+; CHECK-LABEL: Lxray_sled_2:
+; CHECK:       .ascii "\353\t"
+; CHECK-NEXT:  nopw 512(%rax,%rax)
+Test:
+  %cond = icmp eq i32 %i, 0
+  br i1 %cond, label %IsEqual, label %NotEqual
+IsEqual:
+  ret i32 0
+; CHECK:       .p2align 1, 0x90
+; CHECK-LABEL: Lxray_sled_3:
+; CHECK:       retq
+; CHECK-NEXT:  nopw %cs:512(%rax,%rax)
+NotEqual:
+  ret i32 1
+; CHECK:       .p2align 1, 0x90
+; CHECK-LABEL: Lxray_sled_4:
+; CHECK:       retq
+; CHECK-NEXT:  nopw %cs:512(%rax,%rax)
+}
+; CHECK-LABEL: xray_instr_map
+; CHECK-LABEL: Lxray_sleds_start1:
+; CHECK:       .quad {{.*}}xray_sled_2
+; CHECK:       .quad {{.*}}xray_sled_3
+; CHECK:       .quad {{.*}}xray_sled_4
+; CHECK-LABEL: Lxray_sleds_end1:
+; CHECK-LABEL: xray_fn_idx
+; CHECK:       .quad {{.*}}xray_sleds_start1
+; CHECK-NEXT:  .quad {{.*}}xray_sleds_end1