b7cef81fd3
Part of the effort to refactoring frame pointer code generation. We used to use two function attributes "no-frame-pointer-elim" and "no-frame-pointer-elim-non-leaf" to represent three kinds of frame pointer usage: (all) frames use frame pointer, (non-leaf) frames use frame pointer, (none) frame use frame pointer. This CL makes the idea explicit by using only one enum function attribute "frame-pointer" Option "-frame-pointer=" replaces "-disable-fp-elim" for tools such as llc. "no-frame-pointer-elim" and "no-frame-pointer-elim-non-leaf" are still supported for easy migration to "frame-pointer". tests are mostly updated with // replace command line args ‘-disable-fp-elim=false’ with ‘-frame-pointer=none’ grep -iIrnl '\-disable-fp-elim=false' * | xargs sed -i '' -e "s/-disable-fp-elim=false/-frame-pointer=none/g" // replace command line args ‘-disable-fp-elim’ with ‘-frame-pointer=all’ grep -iIrnl '\-disable-fp-elim' * | xargs sed -i '' -e "s/-disable-fp-elim/-frame-pointer=all/g" Patch by Yuanfang Chen (tabloid.adroit)! Differential Revision: https://reviews.llvm.org/D56351 llvm-svn: 351049
55 lines
1.9 KiB
LLVM
55 lines
1.9 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -mtriple=riscv32 -verify-machineinstrs < %s \
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; RUN: | FileCheck -check-prefix=RV32I-FPELIM %s
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; RUN: llc -mtriple=riscv32 -frame-pointer=all -verify-machineinstrs < %s \
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; RUN: | FileCheck -check-prefix=RV32I-WITHFP %s
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%struct.key_t = type { i32, [16 x i8] }
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define i32 @test() nounwind {
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; RV32I-FPELIM-LABEL: test:
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; RV32I-FPELIM: # %bb.0:
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; RV32I-FPELIM-NEXT: addi sp, sp, -32
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; RV32I-FPELIM-NEXT: sw ra, 28(sp)
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; RV32I-FPELIM-NEXT: sw zero, 24(sp)
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; RV32I-FPELIM-NEXT: sw zero, 20(sp)
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; RV32I-FPELIM-NEXT: sw zero, 16(sp)
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; RV32I-FPELIM-NEXT: sw zero, 12(sp)
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; RV32I-FPELIM-NEXT: sw zero, 8(sp)
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; RV32I-FPELIM-NEXT: addi a0, sp, 12
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; RV32I-FPELIM-NEXT: call test1
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; RV32I-FPELIM-NEXT: mv a0, zero
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; RV32I-FPELIM-NEXT: lw ra, 28(sp)
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; RV32I-FPELIM-NEXT: addi sp, sp, 32
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; RV32I-FPELIM-NEXT: ret
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;
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; RV32I-WITHFP-LABEL: test:
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; RV32I-WITHFP: # %bb.0:
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; RV32I-WITHFP-NEXT: addi sp, sp, -32
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; RV32I-WITHFP-NEXT: sw ra, 28(sp)
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; RV32I-WITHFP-NEXT: sw s0, 24(sp)
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; RV32I-WITHFP-NEXT: addi s0, sp, 32
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; RV32I-WITHFP-NEXT: sw zero, -16(s0)
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; RV32I-WITHFP-NEXT: sw zero, -20(s0)
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; RV32I-WITHFP-NEXT: sw zero, -24(s0)
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; RV32I-WITHFP-NEXT: sw zero, -28(s0)
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; RV32I-WITHFP-NEXT: sw zero, -32(s0)
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; RV32I-WITHFP-NEXT: addi a0, s0, -28
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; RV32I-WITHFP-NEXT: call test1
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; RV32I-WITHFP-NEXT: mv a0, zero
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; RV32I-WITHFP-NEXT: lw s0, 24(sp)
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; RV32I-WITHFP-NEXT: lw ra, 28(sp)
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; RV32I-WITHFP-NEXT: addi sp, sp, 32
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; RV32I-WITHFP-NEXT: ret
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%key = alloca %struct.key_t, align 4
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%1 = bitcast %struct.key_t* %key to i8*
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call void @llvm.memset.p0i8.i64(i8* align 4 %1, i8 0, i64 20, i1 false)
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%2 = getelementptr inbounds %struct.key_t, %struct.key_t* %key, i64 0, i32 1, i64 0
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call void @test1(i8* %2) #3
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ret i32 0
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}
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declare void @llvm.memset.p0i8.i64(i8* nocapture, i8, i64, i1)
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declare void @test1(i8*)
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