[PATCH] D12111: x32. Fixes a bug in x32 exception handling.
Derek Schuff via llvm-commits
llvm-commits at lists.llvm.org
Wed Aug 19 09:29:18 PDT 2015
This revision was automatically updated to reflect the committed changes.
Closed by commit rL245454: x32. Fixes a bug in x32 exception handling. (authored by dschuff).
Changed prior to commit:
http://reviews.llvm.org/D12111?vs=32557&id=32562#toc
Repository:
rL LLVM
http://reviews.llvm.org/D12111
Files:
llvm/trunk/lib/Target/X86/X86ISelLowering.cpp
llvm/trunk/test/CodeGen/X86/x32-landingpad.ll
Index: llvm/trunk/test/CodeGen/X86/x32-landingpad.ll
===================================================================
--- llvm/trunk/test/CodeGen/X86/x32-landingpad.ll
+++ llvm/trunk/test/CodeGen/X86/x32-landingpad.ll
@@ -0,0 +1,27 @@
+; RUN: llc < %s -mtriple=x86_64-none-none-gnux32 -mcpu=generic | FileCheck %s
+; RUN: llc < %s -mtriple=x86_64-none-none-gnux32 -mcpu=generic -fast-isel | FileCheck %s
+;
+; Ensures that landingpad instructions in x32 use the right Exception Pointer
+; and Exception Selector registers.
+
+declare void @foo()
+declare void @bar(i8*, i32) noreturn
+declare i32 @__gxx_personality_v0(...)
+
+define void @test1() uwtable personality i32 (...)* @__gxx_personality_v0 {
+entry:
+ invoke void @foo() to label %done unwind label %lpad
+done:
+ ret void
+lpad:
+ %0 = landingpad { i8*, i32 } cleanup
+; The Exception Pointer is %eax; the Exception Selector, %edx.
+; CHECK: LBB{{[^%]*}} %lpad
+; CHECK-DAG: movl %eax, {{.*}}
+; CHECK-DAG: movl %edx, {{.*}}
+; CHECK: callq bar
+ %1 = extractvalue { i8*, i32 } %0, 0
+ %2 = extractvalue { i8*, i32 } %0, 1
+ call void @bar(i8* %1, i32 %2)
+ unreachable
+}
Index: llvm/trunk/lib/Target/X86/X86ISelLowering.cpp
===================================================================
--- llvm/trunk/lib/Target/X86/X86ISelLowering.cpp
+++ llvm/trunk/lib/Target/X86/X86ISelLowering.cpp
@@ -469,7 +469,7 @@
setOperationAction(ISD::EH_LABEL, MVT::Other, Expand);
}
- if (Subtarget->is64Bit()) {
+ if (Subtarget->isTarget64BitLP64()) {
setExceptionPointerRegister(X86::RAX);
setExceptionSelectorRegister(X86::RDX);
} else {
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