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https://github.com/c64scene-ar/llvm-6502.git
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67fdafe1cd
This patch initializes t9 to the handler address, but only if the relocation model is pic. This handles the case where handler to which eh.return jumps points to the start of the function. Patch by Sasa Stankovic. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178588 91177308-0d34-0410-b5e6-96231b3b80d8
86 lines
2.8 KiB
LLVM
86 lines
2.8 KiB
LLVM
; RUN: llc -march=mipsel -mcpu=mips32 < %s | FileCheck %s
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declare void @llvm.eh.return.i32(i32, i8*)
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declare void @foo(...)
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define i8* @f1(i32 %offset, i8* %handler) {
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entry:
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call void (...)* @foo()
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call void @llvm.eh.return.i32(i32 %offset, i8* %handler)
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unreachable
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; CHECK: f1
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; CHECK: addiu $sp, $sp, -[[spoffset:[0-9]+]]
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; check that $a0-$a3 are saved on stack.
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; CHECK: sw $4, [[offset0:[0-9]+]]($sp)
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; CHECK: sw $5, [[offset1:[0-9]+]]($sp)
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; CHECK: sw $6, [[offset2:[0-9]+]]($sp)
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; CHECK: sw $7, [[offset3:[0-9]+]]($sp)
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; check that .cfi_offset directives are emitted for $a0-$a3.
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; CHECK: .cfi_offset 4,
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; CHECK: .cfi_offset 5,
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; CHECK: .cfi_offset 6,
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; CHECK: .cfi_offset 7,
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; check that stack adjustment and handler are put in $v1 and $v0.
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; CHECK: move $[[R0:[a-z0-9]+]], $5
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; CHECK: move $[[R1:[a-z0-9]+]], $4
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; CHECK: move $3, $[[R1]]
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; CHECK: move $2, $[[R0]]
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; check that $a0-$a3 are restored from stack.
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; CHECK: lw $4, [[offset0]]($sp)
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; CHECK: lw $5, [[offset1]]($sp)
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; CHECK: lw $6, [[offset2]]($sp)
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; CHECK: lw $7, [[offset3]]($sp)
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; check that stack is adjusted by $v1 and that code returns to address in $v0
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; also check that $25 contains handler value
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; CHECK: addiu $sp, $sp, [[spoffset]]
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; CHECK: move $25, $2
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; CHECK: move $ra, $2
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; CHECK: jr $ra
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; CHECK: addu $sp, $sp, $3
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}
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define i8* @f2(i32 %offset, i8* %handler) {
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entry:
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call void @llvm.eh.return.i32(i32 %offset, i8* %handler)
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unreachable
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; CHECK: f2
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; CHECK: addiu $sp, $sp, -[[spoffset:[0-9]+]]
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; check that $a0-$a3 are saved on stack.
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; CHECK: sw $4, [[offset0:[0-9]+]]($sp)
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; CHECK: sw $5, [[offset1:[0-9]+]]($sp)
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; CHECK: sw $6, [[offset2:[0-9]+]]($sp)
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; CHECK: sw $7, [[offset3:[0-9]+]]($sp)
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; check that .cfi_offset directives are emitted for $a0-$a3.
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; CHECK: .cfi_offset 4,
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; CHECK: .cfi_offset 5,
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; CHECK: .cfi_offset 6,
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; CHECK: .cfi_offset 7,
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; check that stack adjustment and handler are put in $v1 and $v0.
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; CHECK: move $3, $4
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; CHECK: move $2, $5
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; check that $a0-$a3 are restored from stack.
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; CHECK: lw $4, [[offset0]]($sp)
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; CHECK: lw $5, [[offset1]]($sp)
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; CHECK: lw $6, [[offset2]]($sp)
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; CHECK: lw $7, [[offset3]]($sp)
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; check that stack is adjusted by $v1 and that code returns to address in $v0
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; also check that $25 contains handler value
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; CHECK: addiu $sp, $sp, [[spoffset]]
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; CHECK: move $25, $2
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; CHECK: move $ra, $2
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; CHECK: jr $ra
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; CHECK: addu $sp, $sp, $3
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}
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