Cleanup patch set, and update README.TXT. Add three new patches.

1 files changed, 0 insertions, 64 deletions

diff --git a/contrib/llvm/patches/patch-r271597-clang-r217410-i386-garbage-float.diff b/contrib/llvm/patches/patch-r271597-clang-r217410-i386-garbage-float.diff
deleted file mode 100644
index c16279a..0000000
--- a/contrib/llvm/patches/patch-r271597-clang-r217410-i386-garbage-float.diff
+++ /dev/null
@@ -1,64 +0,0 @@
-Pull in r217410 from upstream llvm trunk (by Bob Wilson):
-
-  Set trunc store action to Expand for all X86 targets.
-
-  When compiling without SSE2, isTruncStoreLegal(F64, F32) would return
-  Legal, whereas with SSE2 it would return Expand. And since the Target
-  doesn't seem to actually handle a truncstore for double -> float, it
-  would just output a store of a full double in the space for a float
-  hence overwriting other bits on the stack.
-
-  Patch by Luqman Aden!
-
-This should fix clang -O0 on i386 assigning garbage to floats, in
-certain scenarios.
-
-Introduced here: http://svnweb.freebsd.org/changeset/base/271597
-
-Index: lib/Target/X86/X86ISelLowering.cpp
-===================================================================
---- lib/Target/X86/X86ISelLowering.cpp	(revision 208032)
-+++ lib/Target/X86/X86ISelLowering.cpp	(working copy)
-@@ -300,6 +300,8 @@ void X86TargetLowering::resetOperationActions() {
-   setTruncStoreAction(MVT::i32, MVT::i8 , Expand);
-   setTruncStoreAction(MVT::i16, MVT::i8,  Expand);
- 
-+  setTruncStoreAction(MVT::f64, MVT::f32, Expand);
-+
-   // SETOEQ and SETUNE require checking two conditions.
-   setCondCodeAction(ISD::SETOEQ, MVT::f32, Expand);
-   setCondCodeAction(ISD::SETOEQ, MVT::f64, Expand);
-@@ -1011,8 +1013,6 @@ void X86TargetLowering::resetOperationActions() {
-       AddPromotedToType (ISD::SELECT, VT, MVT::v2i64);
-     }
- 
--    setTruncStoreAction(MVT::f64, MVT::f32, Expand);
--
-     // Custom lower v2i64 and v2f64 selects.
-     setOperationAction(ISD::LOAD,               MVT::v2f64, Legal);
-     setOperationAction(ISD::LOAD,               MVT::v2i64, Legal);
-Index: test/CodeGen/X86/dont-trunc-store-double-to-float.ll
-===================================================================
---- test/CodeGen/X86/dont-trunc-store-double-to-float.ll	(revision 0)
-+++ test/CodeGen/X86/dont-trunc-store-double-to-float.ll	(working copy)
-@@ -0,0 +1,20 @@
-+; RUN: llc -march=x86 < %s | FileCheck %s
-+
-+; CHECK-LABEL: @bar
-+; CHECK: movl $1074339512,
-+; CHECK: movl $1374389535,
-+; CHECK: movl $1078523331,
-+define void @bar() unnamed_addr {
-+entry-block:
-+  %a = alloca double
-+  %b = alloca float
-+
-+  store double 3.140000e+00, double* %a
-+  %0 = load double* %a
-+
-+  %1 = fptrunc double %0 to float
-+
-+  store float %1, float* %b
-+
-+  ret void
-+}