[SelectionDAG] Remove debug locations from ConstantSD(FP)Nodes

This removes debug locations from ConstantSDNode and ConstantSDFPNode.

When this kind of node is materialized we no longer create a line table
entry which jumps back to the constant's first point of use. This makes
single-stepping behavior smoother, and it matches the model used by IR,
where Constants have no locations. See this thread for more context:

  http://lists.llvm.org/pipermail/llvm-dev/2018-June/124164.html

I'd like to handle constant BuildVectorSDNodes and to try to eliminate
passing SDLocs to SelectionDAG::getConstant*() in follow-up commits.

Differential Revision: https://reviews.llvm.org/D48468

llvm-svn: 335497

1 files changed, 4 insertions, 4 deletions

diff --git a/llvm/test/tools/llvm-objdump/AMDGPU/source-lines.ll b/llvm/test/tools/llvm-objdump/AMDGPU/source-lines.ll
index 6498a120043..464606d6975 100644
--- a/llvm/test/tools/llvm-objdump/AMDGPU/source-lines.ll
+++ b/llvm/test/tools/llvm-objdump/AMDGPU/source-lines.ll
@@ -7,10 +7,10 @@
 ; LINE:      source_lines_test:
 ; LINE-NEXT: ; {{.*}}source-lines.cl:1
 ; Kernel.
-; LINE: ; {{.*}}source-lines.cl:2
 ; LINE: v_mov_b32_e32 v{{[0-9]+}}, 0x777
-; LINE: ; {{.*}}source-lines.cl:3
+; LINE: ; {{.*}}source-lines.cl:2
 ; LINE: v_mov_b32_e32 v{{[0-9]+}}, 0x888
+; LINE: ; {{.*}}source-lines.cl:3
 ; LINE: ; {{.*}}source-lines.cl:4
 ; LINE: v_add_u32_e32
 ; LINE: ; {{.*}}source-lines.cl:5
@@ -23,10 +23,10 @@
 ; SOURCE:      source_lines_test:
 ; SOURCE-NEXT: ; kernel void source_lines_test(global int *Out) {
 ; Kernel.
-; SOURCE: ; int var0 = 0x777;
 ; SOURCE: v_mov_b32_e32 v{{[0-9]+}}, 0x777
-; SOURCE: ; int var1 = 0x888;
+; SOURCE: ; int var0 = 0x777;
 ; SOURCE: v_mov_b32_e32 v{{[0-9]+}}, 0x888
+; SOURCE: ; int var1 = 0x888;
 ; SOURCE: ; int var2 = var0 + var1;
 ; SOURCE: v_add_u32_e32
 ; SOURCE: ; *Out = var2;