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351fbaf236
To do this: 1. Change GlobalAddress SDNode to TargetGlobalAddress to avoid legalizer split the symbol. 2. Change ExternalSymbol SDNode to TargetExternalSymbol to avoid legalizer split the symbol. 3. Let PseudoCALL match direct call with target operand TargetGlobalAddress and TargetExternalSymbol. Differential Revision: https://reviews.llvm.org/D44885 llvm-svn: 330827
106 lines
3.1 KiB
LLVM
106 lines
3.1 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 %s -check-prefix=RV32I
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declare void @notdead(i8*)
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; These tests must ensure the stack pointer is restored using the frame
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; pointer
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define void @simple_alloca(i32 %n) nounwind {
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; RV32I-LABEL: simple_alloca:
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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: sw s0, 8(sp)
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; RV32I-NEXT: addi s0, sp, 16
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; RV32I-NEXT: addi a0, a0, 15
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; RV32I-NEXT: andi a0, a0, -16
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; RV32I-NEXT: sub a0, sp, a0
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; RV32I-NEXT: mv sp, a0
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; RV32I-NEXT: call notdead
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; RV32I-NEXT: addi sp, s0, -16
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; RV32I-NEXT: lw s0, 8(sp)
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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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%1 = alloca i8, i32 %n
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call void @notdead(i8* %1)
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ret void
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}
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declare i8* @llvm.stacksave()
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declare void @llvm.stackrestore(i8*)
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define void @scoped_alloca(i32 %n) nounwind {
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; RV32I-LABEL: scoped_alloca:
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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: sw s0, 8(sp)
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; RV32I-NEXT: sw s1, 4(sp)
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; RV32I-NEXT: addi s0, sp, 16
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; RV32I-NEXT: mv s1, sp
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; RV32I-NEXT: addi a0, a0, 15
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; RV32I-NEXT: andi a0, a0, -16
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; RV32I-NEXT: sub a0, sp, a0
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; RV32I-NEXT: mv sp, a0
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; RV32I-NEXT: call notdead
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; RV32I-NEXT: mv sp, s1
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; RV32I-NEXT: addi sp, s0, -16
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; RV32I-NEXT: lw s1, 4(sp)
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; RV32I-NEXT: lw s0, 8(sp)
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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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%sp = call i8* @llvm.stacksave()
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%addr = alloca i8, i32 %n
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call void @notdead(i8* %addr)
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call void @llvm.stackrestore(i8* %sp)
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ret void
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}
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declare void @func(i8*, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32)
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; Check that outgoing arguments passed on the stack do not corrupt a
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; variable-sized stack object.
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define void @alloca_callframe(i32 %n) nounwind {
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; RV32I-LABEL: alloca_callframe:
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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: sw s0, 8(sp)
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; RV32I-NEXT: addi s0, sp, 16
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; RV32I-NEXT: addi a0, a0, 15
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; RV32I-NEXT: andi a0, a0, -16
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; RV32I-NEXT: sub a0, sp, a0
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; RV32I-NEXT: mv sp, a0
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; RV32I-NEXT: addi sp, sp, -16
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; RV32I-NEXT: addi a1, zero, 12
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; RV32I-NEXT: sw a1, 12(sp)
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; RV32I-NEXT: addi a1, zero, 11
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; RV32I-NEXT: sw a1, 8(sp)
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; RV32I-NEXT: addi a1, zero, 10
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; RV32I-NEXT: sw a1, 4(sp)
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; RV32I-NEXT: addi a1, zero, 9
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; RV32I-NEXT: sw a1, 0(sp)
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; RV32I-NEXT: addi a1, zero, 2
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; RV32I-NEXT: addi a2, zero, 3
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; RV32I-NEXT: addi a3, zero, 4
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; RV32I-NEXT: addi a4, zero, 5
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; RV32I-NEXT: addi a5, zero, 6
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; RV32I-NEXT: addi a6, zero, 7
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; RV32I-NEXT: addi a7, zero, 8
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; RV32I-NEXT: call func
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; RV32I-NEXT: addi sp, sp, 16
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; RV32I-NEXT: addi sp, s0, -16
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; RV32I-NEXT: lw s0, 8(sp)
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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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%1 = alloca i8, i32 %n
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call void @func(i8* %1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8,
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i32 9, i32 10, i32 11, i32 12)
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ret void
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}
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