From 981e45424f52735b1c61ae0eac7e299ed313f8db Mon Sep 17 00:00:00 2001 From: Roland Levillain Date: Fri, 14 Nov 2014 11:47:14 +0000 Subject: Add support for int-to-char in the optimizing compiler. - Add support for the int-to-char Dex instruction in the optimizing compiler. - Implement the ARM and Thumb-2 UBFX instructions and add tests for them. - Generate x86, x86-64 and ARM (but not ARM64) code for byte to char, short to char, int to char (and char to char!) HTypeConversion nodes. - Add related tests to test/422-type-conversion. Change-Id: I5cd4c6d86f0f6a966c059715b98db35cc8f9de76 --- compiler/utils/arm/assembler_arm32.cc | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) (limited to 'compiler/utils/arm/assembler_arm32.cc') diff --git a/compiler/utils/arm/assembler_arm32.cc b/compiler/utils/arm/assembler_arm32.cc index 29cbf5851f..39ebf6803c 100644 --- a/compiler/utils/arm/assembler_arm32.cc +++ b/compiler/utils/arm/assembler_arm32.cc @@ -227,6 +227,25 @@ void Arm32Assembler::sbfx(Register rd, Register rn, uint32_t lsb, uint32_t width } +void Arm32Assembler::ubfx(Register rd, Register rn, uint32_t lsb, uint32_t width, Condition cond) { + CHECK_NE(rd, kNoRegister); + CHECK_NE(rn, kNoRegister); + CHECK_NE(cond, kNoCondition); + CHECK_LE(lsb, 31U); + CHECK(1U <= width && width <= 32U) << width; + uint32_t widthminus1 = width - 1; + + int32_t encoding = (static_cast(cond) << kConditionShift) | + B26 | B25 | B24 | B23 | B22 | B21 | + (widthminus1 << 16) | + (static_cast(rd) << 12) | + (lsb << 7) | + B6 | B4 | + static_cast(rn); + Emit(encoding); +} + + void Arm32Assembler::ldr(Register rd, const Address& ad, Condition cond) { EmitMemOp(cond, true, false, rd, ad); } -- cgit v1.2.3-59-g8ed1b