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e9b17f6bf5
Tail merge was making the assumption that a layout successor or predecessor was always a cfg successor/predecessor. Remove that assumption. Changes to tests are necessary because the errant cfg edges were preventing optimizations. llvm-svn: 273700
65 lines
2.1 KiB
LLVM
65 lines
2.1 KiB
LLVM
; RUN: llc < %s -march=mipsel | FileCheck %s -check-prefix=CHECK-EL
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; RUN: llc < %s -march=mips | FileCheck %s -check-prefix=CHECK-EB
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@g1 = global double 0.000000e+00, align 8
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@_ZTId = external constant i8*
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define void @_Z1fd(double %i2) personality i32 (...)* @__gxx_personality_v0 {
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entry:
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; CHECK-EL: addiu $sp, $sp
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; CHECK-EL: .cfi_def_cfa_offset
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; CHECK-EL: sdc1 $f20
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; CHECK-EL: sw $ra
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; CHECK-EL: .cfi_offset 52, -8
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; CHECK-EL: .cfi_offset 53, -4
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; CHECK-EB: .cfi_offset 53, -8
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; CHECK-EB: .cfi_offset 52, -4
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; CHECK-EL: .cfi_offset 31, -12
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%exception = tail call i8* @__cxa_allocate_exception(i32 8) nounwind
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%0 = bitcast i8* %exception to double*
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store double 3.200000e+00, double* %0, align 8
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invoke void @__cxa_throw(i8* %exception, i8* bitcast (i8** @_ZTId to i8*), i8* null) noreturn
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to label %unreachable unwind label %lpad
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lpad: ; preds = %entry
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; CHECK-EL: # %lpad
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; CHECK-EL: bne $5
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%exn.val = landingpad { i8*, i32 }
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cleanup
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catch i8* bitcast (i8** @_ZTId to i8*)
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%exn = extractvalue { i8*, i32 } %exn.val, 0
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%sel = extractvalue { i8*, i32 } %exn.val, 1
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%1 = tail call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTId to i8*)) nounwind
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%2 = icmp eq i32 %sel, %1
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br i1 %2, label %catch, label %eh.resume
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catch: ; preds = %lpad
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%3 = tail call i8* @__cxa_begin_catch(i8* %exn) nounwind
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%4 = bitcast i8* %3 to double*
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%exn.scalar = load double, double* %4, align 8
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%add = fadd double %exn.scalar, %i2
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store double %add, double* @g1, align 8
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tail call void @__cxa_end_catch() nounwind
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ret void
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eh.resume: ; preds = %lpad
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resume { i8*, i32 } %exn.val
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unreachable: ; preds = %entry
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unreachable
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}
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declare i8* @__cxa_allocate_exception(i32)
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declare i32 @__gxx_personality_v0(...)
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declare i32 @llvm.eh.typeid.for(i8*) nounwind
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declare void @__cxa_throw(i8*, i8*, i8*)
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declare i8* @__cxa_begin_catch(i8*)
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declare void @__cxa_end_catch()
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