llvm-mirror/test/CodeGen/Mips/eh.ll
Jun Bum Lim 8b973fac5e Enhance BranchProbabilityInfo::calcUnreachableHeuristics for InvokeInst
This is recommit of r256028 with minor fixes in unittests:
  CodeGen/Mips/eh.ll
  CodeGen/Mips/insn-zero-size-bb.ll

Original commit message:

When identifying blocks post-dominated by an unreachable-terminated block
in BranchProbabilityInfo, consider only the edge to the normal destination
block if the terminator is InvokeInst and let calcInvokeHeuristics() decide
edge weights for the InvokeInst.

llvm-svn: 256202
2015-12-21 22:00:51 +00:00

65 lines
2.1 KiB
LLVM

; RUN: llc < %s -march=mipsel | FileCheck %s -check-prefix=CHECK-EL
; RUN: llc < %s -march=mips | FileCheck %s -check-prefix=CHECK-EB
@g1 = global double 0.000000e+00, align 8
@_ZTId = external constant i8*
define void @_Z1fd(double %i2) personality i32 (...)* @__gxx_personality_v0 {
entry:
; CHECK-EL: addiu $sp, $sp
; CHECK-EL: .cfi_def_cfa_offset
; CHECK-EL: sdc1 $f20
; CHECK-EL: sw $ra
; CHECK-EL: .cfi_offset 52, -8
; CHECK-EL: .cfi_offset 53, -4
; CHECK-EB: .cfi_offset 53, -8
; CHECK-EB: .cfi_offset 52, -4
; CHECK-EL: .cfi_offset 31, -12
%exception = tail call i8* @__cxa_allocate_exception(i32 8) nounwind
%0 = bitcast i8* %exception to double*
store double 3.200000e+00, double* %0, align 8
invoke void @__cxa_throw(i8* %exception, i8* bitcast (i8** @_ZTId to i8*), i8* null) noreturn
to label %unreachable unwind label %lpad
lpad: ; preds = %entry
; CHECK-EL: # %lpad
; CHECK-EL: beq $5
%exn.val = landingpad { i8*, i32 }
cleanup
catch i8* bitcast (i8** @_ZTId to i8*)
%exn = extractvalue { i8*, i32 } %exn.val, 0
%sel = extractvalue { i8*, i32 } %exn.val, 1
%1 = tail call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTId to i8*)) nounwind
%2 = icmp eq i32 %sel, %1
br i1 %2, label %catch, label %eh.resume
catch: ; preds = %lpad
%3 = tail call i8* @__cxa_begin_catch(i8* %exn) nounwind
%4 = bitcast i8* %3 to double*
%exn.scalar = load double, double* %4, align 8
%add = fadd double %exn.scalar, %i2
store double %add, double* @g1, align 8
tail call void @__cxa_end_catch() nounwind
ret void
eh.resume: ; preds = %lpad
resume { i8*, i32 } %exn.val
unreachable: ; preds = %entry
unreachable
}
declare i8* @__cxa_allocate_exception(i32)
declare i32 @__gxx_personality_v0(...)
declare i32 @llvm.eh.typeid.for(i8*) nounwind
declare void @__cxa_throw(i8*, i8*, i8*)
declare i8* @__cxa_begin_catch(i8*)
declare void @__cxa_end_catch()