[clang] [llvm] [RISCV] Enabled debug entry support by default (PR #157703)

[Craig Topper via llvm-commits]

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@@ -0,0 +1,74 @@
+;; Test RISC-V 64 bit:
+; RUN: llc -emit-call-site-info -stop-after=livedebugvalues -mtriple=riscv64-linux-gnu -o - %s | FileCheck %s --check-prefix=CHECK64
+; RUN: llc -force-instr-ref-livedebugvalues=1 -emit-call-site-info -stop-after=livedebugvalues -mtriple=riscv64-linux-gnu -o - %s | FileCheck %s --check-prefix=CHECK64
+
+;; Built from source:
+;; extern long fn1(long,long,long);
+;; long fn2(long a, long b, long c) {
+;;   long local = fn1(a+b, c, b+10);
+;;   if (local > 10)
+;;     return local + 10;
+;;   return b;
+;; }
+;; Using command:
+;; clang -g -O2 -target riscv64-linux-gnu m.c -c -S -emit-llvm
+;; Confirm that info from callSites attribute is used as entry_value in DIExpression.
+
+;; Test riscv64:
+; CHECK64: renamable $x10 = nsw ADD $x11, killed renamable $x10
+; CHECK64-NEXT: DBG_VALUE $x10, $noreg, !{{.*}}, !DIExpression(DW_OP_LLVM_entry_value, 1)
+
+; ModuleID = 'm.c'
+source_filename = "m.c"
+target datalayout = "e-m:e-p:64:64-i64:64-i128:128-n32:64-S128"
+target triple = "riscv64-unknown-linux-gnu"
+
+; Function Attrs: nounwind uwtable
+define dso_local i64 @fn2(i64 noundef %a, i64 noundef %b, i64 noundef %c) local_unnamed_addr #0 !dbg !14 {
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topperc wrote:

Are dso_local and local_unnamed_addr needed?

https://github.com/llvm/llvm-project/pull/157703