[llvm-commits] [llvm] r66922 - in /llvm/trunk: lib/Target/X86/X86InstrInfo.td test/CodeGen/X86/tls13.ll test/CodeGen/X86/tls14.ll

[Rafael Espindola]

Author: rafael
Date: Fri Mar 13 13:37:06 2009
New Revision: 66922

URL: http://llvm.org/viewvc/llvm-project?rev=66922&view=rev
Log:
Improve sext and zext of TLS variables.


Added:
    llvm/trunk/test/CodeGen/X86/tls13.ll
    llvm/trunk/test/CodeGen/X86/tls14.ll
Modified:
    llvm/trunk/lib/Target/X86/X86InstrInfo.td

Modified: llvm/trunk/lib/Target/X86/X86InstrInfo.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86InstrInfo.td?rev=66922&r1=66921&r2=66922&view=diff

==============================================================================
--- llvm/trunk/lib/Target/X86/X86InstrInfo.td (original)
+++ llvm/trunk/lib/Target/X86/X86InstrInfo.td Fri Mar 13 13:37:06 2009
@@ -2947,6 +2947,24 @@
                         SegGS;
 
 let AddedComplexity = 15 in
+def TLS_sext16_gs_ri : I<0x8B, Pseudo, (outs GR32:$dst), (ins i32imm:$src),
+                         "movswl\t%gs:${src:mem}, $dst",
+                         [(set GR32:$dst,
+                           (sextloadi32i16
+                             (add X86TLStp,
+                               (X86Wrapper tglobaltlsaddr:$src))))]>,
+                         SegGS;
+
+let AddedComplexity = 15 in
+def TLS_zext16_gs_ri : I<0x8B, Pseudo, (outs GR32:$dst), (ins i32imm:$src),
+                         "movzwl\t%gs:${src:mem}, $dst",
+                         [(set GR32:$dst,
+                           (zextloadi32i16
+                             (add X86TLStp,
+                               (X86Wrapper tglobaltlsaddr:$src))))]>,
+                         SegGS;
+
+let AddedComplexity = 15 in
 def TLS_ext8_gs_ri : I<0x8B, Pseudo, (outs GR32:$dst), (ins i32imm:$src),
                         "movzbl\t%gs:${src:mem}, $dst",
                         [(set GR32:$dst,
@@ -2955,6 +2973,24 @@
                               (X86Wrapper tglobaltlsaddr:$src))))]>,
                         SegGS;
 
+let AddedComplexity = 15 in
+def TLS_sext8_gs_ri : I<0x8B, Pseudo, (outs GR32:$dst), (ins i32imm:$src),
+                         "movsbl\t%gs:${src:mem}, $dst",
+                         [(set GR32:$dst,
+                           (sextloadi32i8
+                             (add X86TLStp,
+                               (X86Wrapper tglobaltlsaddr:$src))))]>,
+                         SegGS;
+
+let AddedComplexity = 15 in
+def TLS_zext8_gs_ri : I<0x8B, Pseudo, (outs GR32:$dst), (ins i32imm:$src),
+                         "movzbl\t%gs:${src:mem}, $dst",
+                         [(set GR32:$dst,
+                           (zextloadi32i8
+                             (add X86TLStp,
+                              (X86Wrapper tglobaltlsaddr:$src))))]>,
+                         SegGS;
+
 def TLS_tp : I<0x8B, Pseudo, (outs GR32:$dst), (ins),
                "movl\t%gs:0, $dst",
                [(set GR32:$dst, X86TLStp)]>, SegGS;

Added: llvm/trunk/test/CodeGen/X86/tls13.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/tls13.ll?rev=66922&view=auto

==============================================================================
--- llvm/trunk/test/CodeGen/X86/tls13.ll (added)
+++ llvm/trunk/test/CodeGen/X86/tls13.ll Fri Mar 13 13:37:06 2009
@@ -0,0 +1,21 @@
+; RUN: llvm-as < %s | llc -march=x86 -mtriple=i386-linux-gnu > %t
+; RUN: grep {movswl	%gs:i at NTPOFF, %eax} %t
+; RUN: grep {movzwl	%gs:j at NTPOFF, %eax} %t
+
+ at i = thread_local global i16 0
+ at j = thread_local global i16 0
+
+define void @f() nounwind optsize {
+entry:
+        %0 = load i16* @i, align 2
+        %1 = sext i16 %0 to i32
+        tail call void @g(i32 %1) nounwind
+        %2 = load i16* @j, align 2
+        %3 = zext i16 %2 to i32
+        tail call void @h(i32 %3) nounwind
+        ret void
+}
+
+declare void @g(i32)
+
+declare void @h(i32)

Added: llvm/trunk/test/CodeGen/X86/tls14.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/tls14.ll?rev=66922&view=auto

==============================================================================
--- llvm/trunk/test/CodeGen/X86/tls14.ll (added)
+++ llvm/trunk/test/CodeGen/X86/tls14.ll Fri Mar 13 13:37:06 2009
@@ -0,0 +1,21 @@
+; RUN: llvm-as < %s | llc -march=x86 -mtriple=i386-linux-gnu > %t
+; RUN: grep {movsbl	%gs:i at NTPOFF, %eax} %t
+; RUN: grep {movzbl	%gs:j at NTPOFF, %eax} %t
+
+ at i = thread_local global i8 0
+ at j = thread_local global i8 0
+
+define void @f() nounwind optsize {
+entry:
+        %0 = load i8* @i, align 2
+        %1 = sext i8 %0 to i32
+        tail call void @g(i32 %1) nounwind
+        %2 = load i8* @j, align 2
+        %3 = zext i8 %2 to i32
+        tail call void @h(i32 %3) nounwind
+        ret void
+}
+
+declare void @g(i32)
+
+declare void @h(i32)