[PowerPC] Update the DWARF register-size table

The PPC64 DWARF register-size table did not match the ABI specification (or
GCC, for that matter). Fix that, and add a regression test.

Fixes PR27931.

llvm-svn: 280053

2 files changed, 138 insertions, 3 deletions

diff --git a/clang/lib/CodeGen/TargetInfo.cpp b/clang/lib/CodeGen/TargetInfo.cpp
index 9fd7c493e03..958a8453dcf 100644
--- a/clang/lib/CodeGen/TargetInfo.cpp
+++ b/clang/lib/CodeGen/TargetInfo.cpp
@@ -4413,14 +4413,17 @@ PPC64_initDwarfEHRegSizeTable(CodeGen::CodeGenFunction &CGF,
   // 32-63: fp0-31, the 8-byte floating-point registers
   AssignToArrayRange(Builder, Address, Eight8, 32, 63);
 
-  // 64-76 are various 4-byte special-purpose registers:
+  // 64-67 are various 8-byte special-purpose registers:
   // 64: mq
   // 65: lr
   // 66: ctr
   // 67: ap
+  AssignToArrayRange(Builder, Address, Eight8, 64, 67);
+
+  // 68-76 are various 4-byte special-purpose registers:
   // 68-75 cr0-7
   // 76: xer
-  AssignToArrayRange(Builder, Address, Four8, 64, 76);
+  AssignToArrayRange(Builder, Address, Four8, 68, 76);
 
   // 77-108: v0-31, the 16-byte vector registers
   AssignToArrayRange(Builder, Address, Sixteen8, 77, 108);
@@ -4430,7 +4433,10 @@ PPC64_initDwarfEHRegSizeTable(CodeGen::CodeGenFunction &CGF,
   // 111: spe_acc
   // 112: spefscr
   // 113: sfp
-  AssignToArrayRange(Builder, Address, Four8, 109, 113);
+  // 114: tfhar
+  // 115: tfiar
+  // 116: texasr
+  AssignToArrayRange(Builder, Address, Eight8, 109, 116);
 
   return false;
 }
diff --git a/clang/test/CodeGen/ppc64-dwarf.c b/clang/test/CodeGen/ppc64-dwarf.c
new file mode 100644
index 00000000000..679bded453a
--- /dev/null
+++ b/clang/test/CodeGen/ppc64-dwarf.c
@@ -0,0 +1,129 @@
+// RUN: %clang_cc1 -triple powerpc64-unknown-unknown -emit-llvm %s -o - | FileCheck %s
+static unsigned char dwarf_reg_size_table[1024];
+
+int test() {
+  __builtin_init_dwarf_reg_size_table(dwarf_reg_size_table);
+
+  return __builtin_dwarf_sp_column();
+}
+
+// CHECK-LABEL: define signext i32 @test()
+// CHECK:      store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 0), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 1), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 2), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 3), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 4), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 5), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 6), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 7), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 8), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 9), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 10), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 11), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 12), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 13), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 14), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 15), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 16), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 17), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 18), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 19), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 20), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 21), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 22), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 23), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 24), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 25), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 26), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 27), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 28), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 29), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 30), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 31), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 32), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 33), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 34), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 35), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 36), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 37), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 38), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 39), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 40), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 41), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 42), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 43), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 44), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 45), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 46), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 47), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 48), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 49), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 50), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 51), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 52), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 53), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 54), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 55), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 56), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 57), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 58), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 59), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 60), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 61), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 62), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 63), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 64), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 65), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 66), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 67), align 1
+// CHECK-NEXT: store i8 4, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 68), align 1
+// CHECK-NEXT: store i8 4, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 69), align 1
+// CHECK-NEXT: store i8 4, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 70), align 1
+// CHECK-NEXT: store i8 4, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 71), align 1
+// CHECK-NEXT: store i8 4, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 72), align 1
+// CHECK-NEXT: store i8 4, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 73), align 1
+// CHECK-NEXT: store i8 4, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 74), align 1
+// CHECK-NEXT: store i8 4, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 75), align 1
+// CHECK-NEXT: store i8 4, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 76), align 1
+// CHECK-NEXT: store i8 16, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 77), align 1
+// CHECK-NEXT: store i8 16, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 78), align 1
+// CHECK-NEXT: store i8 16, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 79), align 1
+// CHECK-NEXT: store i8 16, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 80), align 1
+// CHECK-NEXT: store i8 16, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 81), align 1
+// CHECK-NEXT: store i8 16, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 82), align 1
+// CHECK-NEXT: store i8 16, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 83), align 1
+// CHECK-NEXT: store i8 16, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 84), align 1
+// CHECK-NEXT: store i8 16, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 85), align 1
+// CHECK-NEXT: store i8 16, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 86), align 1
+// CHECK-NEXT: store i8 16, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 87), align 1
+// CHECK-NEXT: store i8 16, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 88), align 1
+// CHECK-NEXT: store i8 16, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 89), align 1
+// CHECK-NEXT: store i8 16, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 90), align 1
+// CHECK-NEXT: store i8 16, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 91), align 1
+// CHECK-NEXT: store i8 16, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 92), align 1
+// CHECK-NEXT: store i8 16, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 93), align 1
+// CHECK-NEXT: store i8 16, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 94), align 1
+// CHECK-NEXT: store i8 16, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 95), align 1
+// CHECK-NEXT: store i8 16, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 96), align 1
+// CHECK-NEXT: store i8 16, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 97), align 1
+// CHECK-NEXT: store i8 16, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 98), align 1
+// CHECK-NEXT: store i8 16, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 99), align 1
+// CHECK-NEXT: store i8 16, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 100), align 1
+// CHECK-NEXT: store i8 16, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 101), align 1
+// CHECK-NEXT: store i8 16, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 102), align 1
+// CHECK-NEXT: store i8 16, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 103), align 1
+// CHECK-NEXT: store i8 16, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 104), align 1
+// CHECK-NEXT: store i8 16, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 105), align 1
+// CHECK-NEXT: store i8 16, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 106), align 1
+// CHECK-NEXT: store i8 16, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 107), align 1
+// CHECK-NEXT: store i8 16, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 108), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 109), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 110), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 111), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 112), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 113), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 114), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 115), align 1
+// CHECK-NEXT: store i8 8, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @dwarf_reg_size_table, i32 0, i32 116), align 1
+// CHECK-NEXT: ret i32 1
+