[RISCV] Support and tests for a variety of additional LLVM IR constructs
Previous patches primarily ensured that codegen was possible for the standard
RISC-V instructions. However, there are a number of IR inputs that wouldn't be
appropriately lowered. This patch both adds test cases and supports lowering
for a number of these cases:
* Improved sext/zext/trunc support
* Support for setcc variants that don't map directly to RISC-V instructions
* Lowering mul, and hence support for external symbols
* addc, adde, subc, sube
* mulhs, srem, mulhu, urem, udiv, sdiv
* {srl,sra,shl}_parts
* brind
* br_jt
* bswap, ctlz, cttz, ctpop
* rotl, rotr
* BlockAddress operands
Differential Revision: https://reviews.llvm.org/D29938
llvm-svn: 318737
2017-11-21 16:11:03 +08:00
|
|
|
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
|
|
|
|
; RUN: llc -mtriple=riscv32 -verify-machineinstrs < %s \
|
2018-01-18 20:36:38 +08:00
|
|
|
; RUN: | FileCheck -check-prefix=RV32I %s
|
|
|
|
; RUN: llc -mtriple=riscv32 -mattr=+m -verify-machineinstrs < %s \
|
|
|
|
; RUN: | FileCheck -check-prefix=RV32IM %s
|
[RISCV] Support and tests for a variety of additional LLVM IR constructs
Previous patches primarily ensured that codegen was possible for the standard
RISC-V instructions. However, there are a number of IR inputs that wouldn't be
appropriately lowered. This patch both adds test cases and supports lowering
for a number of these cases:
* Improved sext/zext/trunc support
* Support for setcc variants that don't map directly to RISC-V instructions
* Lowering mul, and hence support for external symbols
* addc, adde, subc, sube
* mulhs, srem, mulhu, urem, udiv, sdiv
* {srl,sra,shl}_parts
* brind
* br_jt
* bswap, ctlz, cttz, ctpop
* rotl, rotr
* BlockAddress operands
Differential Revision: https://reviews.llvm.org/D29938
llvm-svn: 318737
2017-11-21 16:11:03 +08:00
|
|
|
|
2018-01-18 17:41:14 +08:00
|
|
|
define i32 @square(i32 %a) nounwind {
|
[RISCV] Support and tests for a variety of additional LLVM IR constructs
Previous patches primarily ensured that codegen was possible for the standard
RISC-V instructions. However, there are a number of IR inputs that wouldn't be
appropriately lowered. This patch both adds test cases and supports lowering
for a number of these cases:
* Improved sext/zext/trunc support
* Support for setcc variants that don't map directly to RISC-V instructions
* Lowering mul, and hence support for external symbols
* addc, adde, subc, sube
* mulhs, srem, mulhu, urem, udiv, sdiv
* {srl,sra,shl}_parts
* brind
* br_jt
* bswap, ctlz, cttz, ctpop
* rotl, rotr
* BlockAddress operands
Differential Revision: https://reviews.llvm.org/D29938
llvm-svn: 318737
2017-11-21 16:11:03 +08:00
|
|
|
; RV32I-LABEL: square:
|
2017-12-05 01:18:51 +08:00
|
|
|
; RV32I: # %bb.0:
|
2017-12-11 20:34:11 +08:00
|
|
|
; RV32I-NEXT: addi sp, sp, -16
|
2017-12-11 19:53:54 +08:00
|
|
|
; RV32I-NEXT: sw ra, 12(sp)
|
2017-12-15 17:47:01 +08:00
|
|
|
; RV32I-NEXT: mv a1, a0
|
2018-04-25 22:19:12 +08:00
|
|
|
; RV32I-NEXT: call __mulsi3
|
2017-12-11 19:53:54 +08:00
|
|
|
; RV32I-NEXT: lw ra, 12(sp)
|
2017-12-11 20:34:11 +08:00
|
|
|
; RV32I-NEXT: addi sp, sp, 16
|
2017-12-15 17:47:01 +08:00
|
|
|
; RV32I-NEXT: ret
|
2018-01-18 20:36:38 +08:00
|
|
|
;
|
|
|
|
; RV32IM-LABEL: square:
|
|
|
|
; RV32IM: # %bb.0:
|
|
|
|
; RV32IM-NEXT: mul a0, a0, a0
|
|
|
|
; RV32IM-NEXT: ret
|
[RISCV] Support and tests for a variety of additional LLVM IR constructs
Previous patches primarily ensured that codegen was possible for the standard
RISC-V instructions. However, there are a number of IR inputs that wouldn't be
appropriately lowered. This patch both adds test cases and supports lowering
for a number of these cases:
* Improved sext/zext/trunc support
* Support for setcc variants that don't map directly to RISC-V instructions
* Lowering mul, and hence support for external symbols
* addc, adde, subc, sube
* mulhs, srem, mulhu, urem, udiv, sdiv
* {srl,sra,shl}_parts
* brind
* br_jt
* bswap, ctlz, cttz, ctpop
* rotl, rotr
* BlockAddress operands
Differential Revision: https://reviews.llvm.org/D29938
llvm-svn: 318737
2017-11-21 16:11:03 +08:00
|
|
|
%1 = mul i32 %a, %a
|
|
|
|
ret i32 %1
|
|
|
|
}
|
|
|
|
|
2018-01-18 17:41:14 +08:00
|
|
|
define i32 @mul(i32 %a, i32 %b) nounwind {
|
[RISCV] Support and tests for a variety of additional LLVM IR constructs
Previous patches primarily ensured that codegen was possible for the standard
RISC-V instructions. However, there are a number of IR inputs that wouldn't be
appropriately lowered. This patch both adds test cases and supports lowering
for a number of these cases:
* Improved sext/zext/trunc support
* Support for setcc variants that don't map directly to RISC-V instructions
* Lowering mul, and hence support for external symbols
* addc, adde, subc, sube
* mulhs, srem, mulhu, urem, udiv, sdiv
* {srl,sra,shl}_parts
* brind
* br_jt
* bswap, ctlz, cttz, ctpop
* rotl, rotr
* BlockAddress operands
Differential Revision: https://reviews.llvm.org/D29938
llvm-svn: 318737
2017-11-21 16:11:03 +08:00
|
|
|
; RV32I-LABEL: mul:
|
2017-12-05 01:18:51 +08:00
|
|
|
; RV32I: # %bb.0:
|
2017-12-11 20:34:11 +08:00
|
|
|
; RV32I-NEXT: addi sp, sp, -16
|
2017-12-11 19:53:54 +08:00
|
|
|
; RV32I-NEXT: sw ra, 12(sp)
|
2018-04-25 22:19:12 +08:00
|
|
|
; RV32I-NEXT: call __mulsi3
|
2017-12-11 19:53:54 +08:00
|
|
|
; RV32I-NEXT: lw ra, 12(sp)
|
2017-12-11 20:34:11 +08:00
|
|
|
; RV32I-NEXT: addi sp, sp, 16
|
2017-12-15 17:47:01 +08:00
|
|
|
; RV32I-NEXT: ret
|
2018-01-18 20:36:38 +08:00
|
|
|
;
|
|
|
|
; RV32IM-LABEL: mul:
|
|
|
|
; RV32IM: # %bb.0:
|
|
|
|
; RV32IM-NEXT: mul a0, a0, a1
|
|
|
|
; RV32IM-NEXT: ret
|
[RISCV] Support and tests for a variety of additional LLVM IR constructs
Previous patches primarily ensured that codegen was possible for the standard
RISC-V instructions. However, there are a number of IR inputs that wouldn't be
appropriately lowered. This patch both adds test cases and supports lowering
for a number of these cases:
* Improved sext/zext/trunc support
* Support for setcc variants that don't map directly to RISC-V instructions
* Lowering mul, and hence support for external symbols
* addc, adde, subc, sube
* mulhs, srem, mulhu, urem, udiv, sdiv
* {srl,sra,shl}_parts
* brind
* br_jt
* bswap, ctlz, cttz, ctpop
* rotl, rotr
* BlockAddress operands
Differential Revision: https://reviews.llvm.org/D29938
llvm-svn: 318737
2017-11-21 16:11:03 +08:00
|
|
|
%1 = mul i32 %a, %b
|
|
|
|
ret i32 %1
|
|
|
|
}
|
|
|
|
|
2018-01-18 17:41:14 +08:00
|
|
|
define i32 @mul_constant(i32 %a) nounwind {
|
[RISCV] Support and tests for a variety of additional LLVM IR constructs
Previous patches primarily ensured that codegen was possible for the standard
RISC-V instructions. However, there are a number of IR inputs that wouldn't be
appropriately lowered. This patch both adds test cases and supports lowering
for a number of these cases:
* Improved sext/zext/trunc support
* Support for setcc variants that don't map directly to RISC-V instructions
* Lowering mul, and hence support for external symbols
* addc, adde, subc, sube
* mulhs, srem, mulhu, urem, udiv, sdiv
* {srl,sra,shl}_parts
* brind
* br_jt
* bswap, ctlz, cttz, ctpop
* rotl, rotr
* BlockAddress operands
Differential Revision: https://reviews.llvm.org/D29938
llvm-svn: 318737
2017-11-21 16:11:03 +08:00
|
|
|
; RV32I-LABEL: mul_constant:
|
2017-12-05 01:18:51 +08:00
|
|
|
; RV32I: # %bb.0:
|
2017-12-11 20:34:11 +08:00
|
|
|
; RV32I-NEXT: addi sp, sp, -16
|
2017-12-11 19:53:54 +08:00
|
|
|
; RV32I-NEXT: sw ra, 12(sp)
|
[RISCV] Support and tests for a variety of additional LLVM IR constructs
Previous patches primarily ensured that codegen was possible for the standard
RISC-V instructions. However, there are a number of IR inputs that wouldn't be
appropriately lowered. This patch both adds test cases and supports lowering
for a number of these cases:
* Improved sext/zext/trunc support
* Support for setcc variants that don't map directly to RISC-V instructions
* Lowering mul, and hence support for external symbols
* addc, adde, subc, sube
* mulhs, srem, mulhu, urem, udiv, sdiv
* {srl,sra,shl}_parts
* brind
* br_jt
* bswap, ctlz, cttz, ctpop
* rotl, rotr
* BlockAddress operands
Differential Revision: https://reviews.llvm.org/D29938
llvm-svn: 318737
2017-11-21 16:11:03 +08:00
|
|
|
; RV32I-NEXT: addi a1, zero, 5
|
2018-04-25 22:19:12 +08:00
|
|
|
; RV32I-NEXT: call __mulsi3
|
2017-12-11 19:53:54 +08:00
|
|
|
; RV32I-NEXT: lw ra, 12(sp)
|
2017-12-11 20:34:11 +08:00
|
|
|
; RV32I-NEXT: addi sp, sp, 16
|
2017-12-15 17:47:01 +08:00
|
|
|
; RV32I-NEXT: ret
|
2018-01-18 20:36:38 +08:00
|
|
|
;
|
|
|
|
; RV32IM-LABEL: mul_constant:
|
|
|
|
; RV32IM: # %bb.0:
|
|
|
|
; RV32IM-NEXT: addi a1, zero, 5
|
|
|
|
; RV32IM-NEXT: mul a0, a0, a1
|
|
|
|
; RV32IM-NEXT: ret
|
[RISCV] Support and tests for a variety of additional LLVM IR constructs
Previous patches primarily ensured that codegen was possible for the standard
RISC-V instructions. However, there are a number of IR inputs that wouldn't be
appropriately lowered. This patch both adds test cases and supports lowering
for a number of these cases:
* Improved sext/zext/trunc support
* Support for setcc variants that don't map directly to RISC-V instructions
* Lowering mul, and hence support for external symbols
* addc, adde, subc, sube
* mulhs, srem, mulhu, urem, udiv, sdiv
* {srl,sra,shl}_parts
* brind
* br_jt
* bswap, ctlz, cttz, ctpop
* rotl, rotr
* BlockAddress operands
Differential Revision: https://reviews.llvm.org/D29938
llvm-svn: 318737
2017-11-21 16:11:03 +08:00
|
|
|
%1 = mul i32 %a, 5
|
|
|
|
ret i32 %1
|
|
|
|
}
|
|
|
|
|
2018-01-18 17:41:14 +08:00
|
|
|
define i32 @mul_pow2(i32 %a) nounwind {
|
[RISCV] Support and tests for a variety of additional LLVM IR constructs
Previous patches primarily ensured that codegen was possible for the standard
RISC-V instructions. However, there are a number of IR inputs that wouldn't be
appropriately lowered. This patch both adds test cases and supports lowering
for a number of these cases:
* Improved sext/zext/trunc support
* Support for setcc variants that don't map directly to RISC-V instructions
* Lowering mul, and hence support for external symbols
* addc, adde, subc, sube
* mulhs, srem, mulhu, urem, udiv, sdiv
* {srl,sra,shl}_parts
* brind
* br_jt
* bswap, ctlz, cttz, ctpop
* rotl, rotr
* BlockAddress operands
Differential Revision: https://reviews.llvm.org/D29938
llvm-svn: 318737
2017-11-21 16:11:03 +08:00
|
|
|
; RV32I-LABEL: mul_pow2:
|
2017-12-05 01:18:51 +08:00
|
|
|
; RV32I: # %bb.0:
|
[RISCV] Support and tests for a variety of additional LLVM IR constructs
Previous patches primarily ensured that codegen was possible for the standard
RISC-V instructions. However, there are a number of IR inputs that wouldn't be
appropriately lowered. This patch both adds test cases and supports lowering
for a number of these cases:
* Improved sext/zext/trunc support
* Support for setcc variants that don't map directly to RISC-V instructions
* Lowering mul, and hence support for external symbols
* addc, adde, subc, sube
* mulhs, srem, mulhu, urem, udiv, sdiv
* {srl,sra,shl}_parts
* brind
* br_jt
* bswap, ctlz, cttz, ctpop
* rotl, rotr
* BlockAddress operands
Differential Revision: https://reviews.llvm.org/D29938
llvm-svn: 318737
2017-11-21 16:11:03 +08:00
|
|
|
; RV32I-NEXT: slli a0, a0, 3
|
2017-12-15 17:47:01 +08:00
|
|
|
; RV32I-NEXT: ret
|
2018-01-18 20:36:38 +08:00
|
|
|
;
|
|
|
|
; RV32IM-LABEL: mul_pow2:
|
|
|
|
; RV32IM: # %bb.0:
|
|
|
|
; RV32IM-NEXT: slli a0, a0, 3
|
|
|
|
; RV32IM-NEXT: ret
|
[RISCV] Support and tests for a variety of additional LLVM IR constructs
Previous patches primarily ensured that codegen was possible for the standard
RISC-V instructions. However, there are a number of IR inputs that wouldn't be
appropriately lowered. This patch both adds test cases and supports lowering
for a number of these cases:
* Improved sext/zext/trunc support
* Support for setcc variants that don't map directly to RISC-V instructions
* Lowering mul, and hence support for external symbols
* addc, adde, subc, sube
* mulhs, srem, mulhu, urem, udiv, sdiv
* {srl,sra,shl}_parts
* brind
* br_jt
* bswap, ctlz, cttz, ctpop
* rotl, rotr
* BlockAddress operands
Differential Revision: https://reviews.llvm.org/D29938
llvm-svn: 318737
2017-11-21 16:11:03 +08:00
|
|
|
%1 = mul i32 %a, 8
|
|
|
|
ret i32 %1
|
|
|
|
}
|
|
|
|
|
2018-01-18 17:41:14 +08:00
|
|
|
define i64 @mul64(i64 %a, i64 %b) nounwind {
|
[RISCV] Support and tests for a variety of additional LLVM IR constructs
Previous patches primarily ensured that codegen was possible for the standard
RISC-V instructions. However, there are a number of IR inputs that wouldn't be
appropriately lowered. This patch both adds test cases and supports lowering
for a number of these cases:
* Improved sext/zext/trunc support
* Support for setcc variants that don't map directly to RISC-V instructions
* Lowering mul, and hence support for external symbols
* addc, adde, subc, sube
* mulhs, srem, mulhu, urem, udiv, sdiv
* {srl,sra,shl}_parts
* brind
* br_jt
* bswap, ctlz, cttz, ctpop
* rotl, rotr
* BlockAddress operands
Differential Revision: https://reviews.llvm.org/D29938
llvm-svn: 318737
2017-11-21 16:11:03 +08:00
|
|
|
; RV32I-LABEL: mul64:
|
2017-12-05 01:18:51 +08:00
|
|
|
; RV32I: # %bb.0:
|
2017-12-11 20:34:11 +08:00
|
|
|
; RV32I-NEXT: addi sp, sp, -16
|
2017-12-11 19:53:54 +08:00
|
|
|
; RV32I-NEXT: sw ra, 12(sp)
|
2018-04-25 22:19:12 +08:00
|
|
|
; RV32I-NEXT: call __muldi3
|
2017-12-11 19:53:54 +08:00
|
|
|
; RV32I-NEXT: lw ra, 12(sp)
|
2017-12-11 20:34:11 +08:00
|
|
|
; RV32I-NEXT: addi sp, sp, 16
|
2017-12-15 17:47:01 +08:00
|
|
|
; RV32I-NEXT: ret
|
2018-01-18 20:36:38 +08:00
|
|
|
;
|
|
|
|
; RV32IM-LABEL: mul64:
|
|
|
|
; RV32IM: # %bb.0:
|
|
|
|
; RV32IM-NEXT: mul a3, a0, a3
|
|
|
|
; RV32IM-NEXT: mulhu a4, a0, a2
|
|
|
|
; RV32IM-NEXT: add a3, a4, a3
|
|
|
|
; RV32IM-NEXT: mul a1, a1, a2
|
|
|
|
; RV32IM-NEXT: add a1, a3, a1
|
|
|
|
; RV32IM-NEXT: mul a0, a0, a2
|
|
|
|
; RV32IM-NEXT: ret
|
[RISCV] Support and tests for a variety of additional LLVM IR constructs
Previous patches primarily ensured that codegen was possible for the standard
RISC-V instructions. However, there are a number of IR inputs that wouldn't be
appropriately lowered. This patch both adds test cases and supports lowering
for a number of these cases:
* Improved sext/zext/trunc support
* Support for setcc variants that don't map directly to RISC-V instructions
* Lowering mul, and hence support for external symbols
* addc, adde, subc, sube
* mulhs, srem, mulhu, urem, udiv, sdiv
* {srl,sra,shl}_parts
* brind
* br_jt
* bswap, ctlz, cttz, ctpop
* rotl, rotr
* BlockAddress operands
Differential Revision: https://reviews.llvm.org/D29938
llvm-svn: 318737
2017-11-21 16:11:03 +08:00
|
|
|
%1 = mul i64 %a, %b
|
|
|
|
ret i64 %1
|
|
|
|
}
|
|
|
|
|
2018-01-18 17:41:14 +08:00
|
|
|
define i64 @mul64_constant(i64 %a) nounwind {
|
[RISCV] Support and tests for a variety of additional LLVM IR constructs
Previous patches primarily ensured that codegen was possible for the standard
RISC-V instructions. However, there are a number of IR inputs that wouldn't be
appropriately lowered. This patch both adds test cases and supports lowering
for a number of these cases:
* Improved sext/zext/trunc support
* Support for setcc variants that don't map directly to RISC-V instructions
* Lowering mul, and hence support for external symbols
* addc, adde, subc, sube
* mulhs, srem, mulhu, urem, udiv, sdiv
* {srl,sra,shl}_parts
* brind
* br_jt
* bswap, ctlz, cttz, ctpop
* rotl, rotr
* BlockAddress operands
Differential Revision: https://reviews.llvm.org/D29938
llvm-svn: 318737
2017-11-21 16:11:03 +08:00
|
|
|
; RV32I-LABEL: mul64_constant:
|
2017-12-05 01:18:51 +08:00
|
|
|
; RV32I: # %bb.0:
|
2017-12-11 20:34:11 +08:00
|
|
|
; RV32I-NEXT: addi sp, sp, -16
|
2017-12-11 19:53:54 +08:00
|
|
|
; RV32I-NEXT: sw ra, 12(sp)
|
[RISCV] Support and tests for a variety of additional LLVM IR constructs
Previous patches primarily ensured that codegen was possible for the standard
RISC-V instructions. However, there are a number of IR inputs that wouldn't be
appropriately lowered. This patch both adds test cases and supports lowering
for a number of these cases:
* Improved sext/zext/trunc support
* Support for setcc variants that don't map directly to RISC-V instructions
* Lowering mul, and hence support for external symbols
* addc, adde, subc, sube
* mulhs, srem, mulhu, urem, udiv, sdiv
* {srl,sra,shl}_parts
* brind
* br_jt
* bswap, ctlz, cttz, ctpop
* rotl, rotr
* BlockAddress operands
Differential Revision: https://reviews.llvm.org/D29938
llvm-svn: 318737
2017-11-21 16:11:03 +08:00
|
|
|
; RV32I-NEXT: addi a2, zero, 5
|
2017-12-15 17:47:01 +08:00
|
|
|
; RV32I-NEXT: mv a3, zero
|
2018-04-25 22:19:12 +08:00
|
|
|
; RV32I-NEXT: call __muldi3
|
2017-12-11 19:53:54 +08:00
|
|
|
; RV32I-NEXT: lw ra, 12(sp)
|
2017-12-11 20:34:11 +08:00
|
|
|
; RV32I-NEXT: addi sp, sp, 16
|
2017-12-15 17:47:01 +08:00
|
|
|
; RV32I-NEXT: ret
|
2018-01-18 20:36:38 +08:00
|
|
|
;
|
|
|
|
; RV32IM-LABEL: mul64_constant:
|
|
|
|
; RV32IM: # %bb.0:
|
|
|
|
; RV32IM-NEXT: addi a2, zero, 5
|
|
|
|
; RV32IM-NEXT: mul a1, a1, a2
|
|
|
|
; RV32IM-NEXT: mulhu a3, a0, a2
|
|
|
|
; RV32IM-NEXT: add a1, a3, a1
|
|
|
|
; RV32IM-NEXT: mul a0, a0, a2
|
|
|
|
; RV32IM-NEXT: ret
|
[RISCV] Support and tests for a variety of additional LLVM IR constructs
Previous patches primarily ensured that codegen was possible for the standard
RISC-V instructions. However, there are a number of IR inputs that wouldn't be
appropriately lowered. This patch both adds test cases and supports lowering
for a number of these cases:
* Improved sext/zext/trunc support
* Support for setcc variants that don't map directly to RISC-V instructions
* Lowering mul, and hence support for external symbols
* addc, adde, subc, sube
* mulhs, srem, mulhu, urem, udiv, sdiv
* {srl,sra,shl}_parts
* brind
* br_jt
* bswap, ctlz, cttz, ctpop
* rotl, rotr
* BlockAddress operands
Differential Revision: https://reviews.llvm.org/D29938
llvm-svn: 318737
2017-11-21 16:11:03 +08:00
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%1 = mul i64 %a, 5
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ret i64 %1
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}
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2018-01-18 20:36:38 +08:00
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define i32 @mulhs(i32 %a, i32 %b) nounwind {
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; RV32I-LABEL: mulhs:
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; RV32I: # %bb.0:
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; RV32I-NEXT: addi sp, sp, -16
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; RV32I-NEXT: sw ra, 12(sp)
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; RV32I-NEXT: mv a2, a1
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; RV32I-NEXT: srai a1, a0, 31
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; RV32I-NEXT: srai a3, a2, 31
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2018-04-25 22:19:12 +08:00
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; RV32I-NEXT: call __muldi3
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2018-01-18 20:36:38 +08:00
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; RV32I-NEXT: mv a0, a1
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; RV32I-NEXT: lw ra, 12(sp)
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; RV32I-NEXT: addi sp, sp, 16
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; RV32I-NEXT: ret
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;
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; RV32IM-LABEL: mulhs:
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; RV32IM: # %bb.0:
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; RV32IM-NEXT: mulh a0, a0, a1
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; RV32IM-NEXT: ret
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%1 = sext i32 %a to i64
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%2 = sext i32 %b to i64
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%3 = mul i64 %1, %2
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%4 = lshr i64 %3, 32
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%5 = trunc i64 %4 to i32
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ret i32 %5
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}
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define i32 @mulhu(i32 %a, i32 %b) nounwind {
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; RV32I-LABEL: mulhu:
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; RV32I: # %bb.0:
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; RV32I-NEXT: addi sp, sp, -16
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; RV32I-NEXT: sw ra, 12(sp)
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; RV32I-NEXT: mv a2, a1
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; RV32I-NEXT: mv a1, zero
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; RV32I-NEXT: mv a3, zero
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2018-04-25 22:19:12 +08:00
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; RV32I-NEXT: call __muldi3
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2018-01-18 20:36:38 +08:00
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; RV32I-NEXT: mv a0, a1
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; RV32I-NEXT: lw ra, 12(sp)
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; RV32I-NEXT: addi sp, sp, 16
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; RV32I-NEXT: ret
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;
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; RV32IM-LABEL: mulhu:
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; RV32IM: # %bb.0:
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; RV32IM-NEXT: mulhu a0, a0, a1
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; RV32IM-NEXT: ret
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%1 = zext i32 %a to i64
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%2 = zext i32 %b to i64
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%3 = mul i64 %1, %2
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%4 = lshr i64 %3, 32
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%5 = trunc i64 %4 to i32
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ret i32 %5
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}
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