Author: timshen Date: Mon Jan 23 16:39:35 2017 New Revision: 292839 URL: http://llvm.org/viewvc/llvm-project?rev=292839&view=rev Log: [APFloat] Switch from (PPCDoubleDoubleImpl, IEEEdouble) layout to (IEEEdouble, IEEEdouble)
Summary: This patch changes the layout of DoubleAPFloat, and adjust all operations to do either: 1) (IEEEdouble, IEEEdouble) -> (uint64_t, uint64_t) -> PPCDoubleDoubleImpl, then run the old algorithm. 2) Do the right thing directly. 1) includes multiply, divide, remainder, mod, fusedMultiplyAdd, roundToIntegral, convertFromString, next, convertToInteger, convertFromAPInt, convertFromSignExtendedInteger, convertFromZeroExtendedInteger, convertToHexString, toString, getExactInverse. 2) includes makeZero, makeLargest, makeSmallest, makeSmallestNormalized, compare, bitwiseIsEqual, bitcastToAPInt, isDenormal, isSmallest, isLargest, isInteger, ilogb, scalbn, frexp, hash_value, Profile. I could split this into two patches, e.g. use 1) for all operatoins first, then incrementally change some of them to 2). I didn't do that, because 1) involves code that converts data between PPCDoubleDoubleImpl and (IEEEdouble, IEEEdouble) back and forth, and may pessimize the compiler. Instead, I find easy functions and use approach 2) for them directly. Next step is to implement move multiply and divide from 1) to 2). I don't have plans for other functions in 1). Differential Revision: https://reviews.llvm.org/D27872 Modified: cfe/trunk/test/CodeGen/ppc64-complex-parms.c Modified: cfe/trunk/test/CodeGen/ppc64-complex-parms.c URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGen/ppc64-complex-parms.c?rev=292839&r1=292838&r2=292839&view=diff ============================================================================== --- cfe/trunk/test/CodeGen/ppc64-complex-parms.c (original) +++ cfe/trunk/test/CodeGen/ppc64-complex-parms.c Mon Jan 23 16:39:35 2017 @@ -93,7 +93,7 @@ void bar_long_double(void) { // CHECK: %[[VAR22:[A-Za-z0-9.]+]] = getelementptr inbounds { ppc_fp128, ppc_fp128 }, { ppc_fp128, ppc_fp128 }* %[[VAR21]], i32 0, i32 0 // CHECK: %[[VAR23:[A-Za-z0-9.]+]] = getelementptr inbounds { ppc_fp128, ppc_fp128 }, { ppc_fp128, ppc_fp128 }* %[[VAR21]], i32 0, i32 1 // CHECK: store ppc_fp128 0xM40000000000000000000000000000000, ppc_fp128* %[[VAR22]] -// CHECK: store ppc_fp128 0xMC0040000000000000000000000000000, ppc_fp128* %[[VAR23]] +// CHECK: store ppc_fp128 0xMC0040000000000008000000000000000, ppc_fp128* %[[VAR23]] // CHECK: %[[VAR24:[A-Za-z0-9.]+]] = getelementptr inbounds { ppc_fp128, ppc_fp128 }, { ppc_fp128, ppc_fp128 }* %[[VAR21]], i32 0, i32 0 // CHECK: %[[VAR25:[A-Za-z0-9.]+]] = load ppc_fp128, ppc_fp128* %[[VAR24]], align 16 // CHECK: %[[VAR26:[A-Za-z0-9.]+]] = getelementptr inbounds { ppc_fp128, ppc_fp128 }, { ppc_fp128, ppc_fp128 }* %[[VAR21]], i32 0, i32 1 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
