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llvm-project/llvm/test/CodeGen/Mips/micromips-target-external-s...

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[mips] Fix JmpLink to texternalsym and tglobaladdr on mcroMIPS R6 There is not match for the `MipsJmpLink texternalsym` and `MipsJmpLink tglobaladdr` patterns for microMIPS R6. As a result LLVM incorrectly selects the `JALRC16` compact 2-byte instruction which takes a target instruction address from a register only and assign `R_MIPS_32` relocation for this instruction. This relocation completely overwrites `JALRC16` and nearby instructions. This patch adds missed matching patterns, selects `BALC` instruction and assign a correct `R_MICROMIPS_PC26_S1` relocation. Differential Revision: https://reviews.llvm.org/D64552 llvm-svn: 365870
2019-07-12 12:58:45 +08:00
; RUN: llc -mtriple=mips-mti-linux-gnu -mcpu=mips32r2 -mattr=+micromips \
; RUN: -stop-after=finalize-isel < %s | FileCheck --check-prefix=MM2 %s
; RUN: llc -mtriple=mips-mti-linux-gnu -mcpu=mips32r6 -mattr=+micromips \
; RUN: -stop-after=finalize-isel < %s | FileCheck --check-prefix=MM6 %s
[mips][micromips] Fix JmpLink to TargetExternalSymbol When matching MipsISD::JmpLink t9, TargetExternalSymbol:i32'...', wrong JALR16_MM is selected. This patch adds missing pattern for JmpLink, so that JAL instruction is selected. Differential Revision: https://reviews.llvm.org/D53366 llvm-svn: 345830
2018-11-01 21:57:54 +08:00
[mips] Fix JmpLink to texternalsym and tglobaladdr on mcroMIPS R6 There is not match for the `MipsJmpLink texternalsym` and `MipsJmpLink tglobaladdr` patterns for microMIPS R6. As a result LLVM incorrectly selects the `JALRC16` compact 2-byte instruction which takes a target instruction address from a register only and assign `R_MIPS_32` relocation for this instruction. This relocation completely overwrites `JALRC16` and nearby instructions. This patch adds missed matching patterns, selects `BALC` instruction and assign a correct `R_MICROMIPS_PC26_S1` relocation. Differential Revision: https://reviews.llvm.org/D64552 llvm-svn: 365870
2019-07-12 12:58:45 +08:00
; MM2: JAL_MM @bar
; MM2: JAL_MM &memset
; MM2-NOT: JALR16_MM
; MM6: JAL_MMR6 @bar
; MM6: JAL_MMR6 &memset
; MM6-NOT: JALRC16_MMR6
[mips][micromips] Fix JmpLink to TargetExternalSymbol When matching MipsISD::JmpLink t9, TargetExternalSymbol:i32'...', wrong JALR16_MM is selected. This patch adds missing pattern for JmpLink, so that JAL instruction is selected. Differential Revision: https://reviews.llvm.org/D53366 llvm-svn: 345830
2018-11-01 21:57:54 +08:00
define dso_local void @foo(i32* nocapture %ar) local_unnamed_addr {
entry:
[mips] Fix JmpLink to texternalsym and tglobaladdr on mcroMIPS R6 There is not match for the `MipsJmpLink texternalsym` and `MipsJmpLink tglobaladdr` patterns for microMIPS R6. As a result LLVM incorrectly selects the `JALRC16` compact 2-byte instruction which takes a target instruction address from a register only and assign `R_MIPS_32` relocation for this instruction. This relocation completely overwrites `JALRC16` and nearby instructions. This patch adds missed matching patterns, selects `BALC` instruction and assign a correct `R_MICROMIPS_PC26_S1` relocation. Differential Revision: https://reviews.llvm.org/D64552 llvm-svn: 365870
2019-07-12 12:58:45 +08:00
call void @bar()
[mips][micromips] Fix JmpLink to TargetExternalSymbol When matching MipsISD::JmpLink t9, TargetExternalSymbol:i32'...', wrong JALR16_MM is selected. This patch adds missing pattern for JmpLink, so that JAL instruction is selected. Differential Revision: https://reviews.llvm.org/D53366 llvm-svn: 345830
2018-11-01 21:57:54 +08:00
%0 = bitcast i32* %ar to i8*
tail call void @llvm.memset.p0i8.i32(i8* align 4 %0, i8 0, i32 100, i1 false)
ret void
}
declare void @llvm.memset.p0i8.i32(i8* nocapture writeonly, i8, i32, i1)
[mips] Fix JmpLink to texternalsym and tglobaladdr on mcroMIPS R6 There is not match for the `MipsJmpLink texternalsym` and `MipsJmpLink tglobaladdr` patterns for microMIPS R6. As a result LLVM incorrectly selects the `JALRC16` compact 2-byte instruction which takes a target instruction address from a register only and assign `R_MIPS_32` relocation for this instruction. This relocation completely overwrites `JALRC16` and nearby instructions. This patch adds missed matching patterns, selects `BALC` instruction and assign a correct `R_MICROMIPS_PC26_S1` relocation. Differential Revision: https://reviews.llvm.org/D64552 llvm-svn: 365870
2019-07-12 12:58:45 +08:00
declare void @bar()