[all-commits] [llvm/llvm-project] bef684: [X86][FastISel] Support materializing floating-poi...

[Fangrui Song via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: bef684154d400df5cfd935a18ed7312a582fe5eb
      https://github.com/llvm/llvm-project/commit/bef684154d400df5cfd935a18ed7312a582fe5eb
  Author: Fangrui Song <maskray at google.com>
  Date:   2020-08-23 (Sun, 23 Aug 2020)

  Changed paths:
    M llvm/lib/Target/X86/X86FastISel.cpp
    M llvm/test/CodeGen/X86/fast-isel-constpool.ll

  Log Message:
  -----------
  [X86][FastISel] Support materializing floating-point constants for large code model & PIC

The following program miscompiles because rL216012 added static
relocation model support but not for PIC.

```
// clang -fpic -mcmodel=large -O0 a.cc
double foo() { return 42.0; }
```

This patch adds PIC support.

Reviewed By: craig.topper

Differential Revision: https://reviews.llvm.org/D86024